SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

CC Holdings GS V LLC – ‘10-K’ for 12/31/17 – ‘EX-101.LAB’

On:  Monday, 2/26/18, at 4:44pm ET   ·   For:  12/31/17   ·   Accession #:  1574291-18-6   ·   File #:  333-187970

Previous ‘10-K’:  ‘10-K’ on 2/22/17 for 12/31/16   ·   Next:  ‘10-K’ on 2/25/19 for 12/31/18   ·   Latest:  ‘10-K’ on 2/22/21 for 12/31/20

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

 2/26/18  CC Holdings GS V LLC              10-K       12/31/17   62:5.8M

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML    973K 
 2: EX-12       Computation of Ratio of Earnings to Fixed Charges   HTML     34K 
 3: EX-31.1     Certification of CEO (302)                          HTML     26K 
 4: EX-31.2     Certification of CFO (302)                          HTML     26K 
 5: EX-32.1     Certification of CEO and CFO (906)                  HTML     22K 
12: R1          Document and Entity Information                     HTML     46K 
13: R2          Consolidated Balance Sheet                          HTML     95K 
14: R3          Consolidated Balance Sheet (Parenthetical)          HTML     19K 
15: R4          Consolidated Statement of Operations and            HTML     56K 
                Comprehensive Income (Loss)                                      
16: R5          Consolidated Statement of Cash Flows                HTML     75K 
17: R6          Consolidated Statement of Changes in Member's       HTML     34K 
                Equity                                                           
18: R7          Basis of Presentation                               HTML     26K 
19: R8          Summary of Significant Accounting Policies          HTML     59K 
20: R9          Property and Equipment                              HTML     38K 
21: R10         Intangible Assets and Above-market Leases           HTML     83K 
22: R11         Debt and Other Obligations                          HTML     61K 
23: R12         Related Party Transactions                          HTML     31K 
24: R13         Fair Value Disclosures                              HTML     39K 
25: R14         Income Taxes                                        HTML     24K 
26: R15         Commitments and Contingencies                       HTML     25K 
27: R16         Leases                                              HTML     48K 
28: R17         Concentration of Credit Risk                        HTML     36K 
29: R18         Supplemental Cash Flow Information                  HTML     27K 
30: R19         Guarantor Subsidiaries (Notes)                      HTML     22K 
31: R20         Schedule III - Real Estate and Accumulated          HTML     60K 
                Depreciation (Notes)                                             
32: R21         Schedule II - Valuation and Qualifying Accounts     HTML     43K 
                (Notes)                                                          
33: R22         Summary of Significant Accounting Policies          HTML    102K 
                (Policies)                                                       
34: R23         Property and Equipment (Tables)                     HTML     36K 
35: R24         Intangible Assets and Above-market Leases (Tables)  HTML     89K 
36: R25         Debt and Other Obligations (Tables)                 HTML     51K 
37: R26         Fair Value Disclosures (Tables)                     HTML     38K 
38: R27         Leases (Tables)                                     HTML     49K 
39: R28         Concentration of Credit Risk (Tables)               HTML     34K 
40: R29         Supplemental Cash Flow Information (Tables)         HTML     27K 
41: R30         Schedule III - Real Estate and Accumulated          HTML     60K 
                Depreciation (Tables)                                            
42: R31         Schedule II - Valuation and Qualifying Accounts     HTML     41K 
                (Tables)                                                         
43: R32         Basis of Presentation (Details)                     HTML     25K 
44: R33         Summary of Significant Accounting Policies          HTML     35K 
                (Details)                                                        
45: R34         Property and Equipment (Details)                    HTML     49K 
46: R35         Intangible Assets and Above-market Leases           HTML     73K 
                (Details)                                                        
47: R36         Debt and Other Obligations (Indebtedness)           HTML     21K 
                (Details)                                                        
48: R37         Debt and Other Obligations (Textuals) (Details)     HTML     48K 
49: R38         Debt and Other Obligations (Scheduled Contractual   HTML     43K 
                Maturities) (Details)                                            
50: R39         Debt and Other Obligations Debt and Other           HTML     26K 
                Obligations (Interest Expense and Amortization of                
                Deferred Financing Costs) (Details)                              
51: R40         Related Party Transactions (Details)                HTML     47K 
52: R41         Fair Value Disclosures (Estimated Fair Values and   HTML     35K 
                Carrying Amounts of Assets and Liabilities)                      
                (Details)                                                        
53: R42         Income Taxes (Benefit (Provision) for Income        HTML     21K 
                Taxes) (Details)                                                 
54: R43         Commitments and Contingencies (Details)             HTML     27K 
55: R44         Leases (Details)                                    HTML     82K 
56: R45         Concentration of Credit Risk (Major Customers)      HTML     27K 
                (Details)                                                        
57: R46         Supplemental Cash Flow Information (Details)        HTML     21K 
58: R47         Schedule III - Real Estate and Accumulated          HTML     49K 
                Depreciation (Details)                                           
59: R48         Schedule II - Valuation and Qualifying Accounts     HTML     30K 
                (Details)                                                        
61: XML         IDEA XML File -- Filing Summary                      XML    109K 
60: EXCEL       IDEA Workbook of Financial Reports                  XLSX     61K 
 6: EX-101.INS  XBRL Instance -- gsv-20171231                        XML   1.06M 
 8: EX-101.CAL  XBRL Calculations -- gsv-20171231_cal                XML    169K 
 9: EX-101.DEF  XBRL Definitions -- gsv-20171231_def                 XML    600K 
10: EX-101.LAB  XBRL Labels -- gsv-20171231_lab                      XML   1.23M 
11: EX-101.PRE  XBRL Presentations -- gsv-20171231_pre               XML    742K 
 7: EX-101.SCH  XBRL Schema -- gsv-20171231                          XSD    154K 
62: ZIP         XBRL Zipped Folder -- 0001574291-18-000006-xbrl      Zip    160K

‘EX-101.LAB’   —   XBRL Labels — gsv-20171231_lab

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva -->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple"/>
<link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple"/>
<link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
<link:label id="lab_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA_label_en-US" xlink:label="lab_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets </link:label>
<link:label id="lab_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA_documentation_en-US" xlink:label="lab_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_GoodwillandIntangibleAssets" xlink:label="loc_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA" xlink:to="lab_gsv_GoodwillandIntangibleAssets_7BC6F4923061BC488B23CA4CB21F06AA" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F" xlink:to="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_1C0AF371B865E1BA9783CA4CB21F4B3F" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7AED8532CFB177EB5A48CA4CB220677D" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_CA7FABA1F709F54DB1C0CA4CB2205FB4" xlink:type="arc"/>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D_terseLabel_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site Rental Contracts and Customer Relationships [Member] </link:label>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D_label_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Site Rental Contracts and Customer Relationships [Member] </link:label>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D_documentation_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Site Rental Contracts and Customer Relationships </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SiteRentalContractsAndCustomerRelationshipsMember" xlink:label="loc_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:to="lab_gsv_SiteRentalContractsAndCustomerRelationshipsMember_91249265B87EFAC6472ECA4CB220B08D" xlink:type="arc"/>
<link:label id="lab_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1_terseLabel_en-US" xlink:label="lab_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Above Market Leases [Member] </link:label>
<link:label id="lab_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1_label_en-US" xlink:label="lab_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Above Market Leases [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AboveMarketLeasesMember" xlink:label="loc_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1" xlink:to="lab_us-gaap_AboveMarketLeasesMember_35354A4D65C8E13E91ADCA4CB2201EF1" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets [Line Items] </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_B2110BD8DB7B3B1DF204CA4CB220C1AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Intangible Assets </link:label>
<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127" xlink:to="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_B70EF9D2CF8107F75089CA4CB2205127" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Estimated Annual Amortization Expense </link:label>
<link:label id="lab_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C_label_en-US" xlink:label="lab_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C" xlink:to="lab_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_F9A6EEDAA1CA2DF9C1B3CA4CB2204A3C" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_99A0953FB81ED360C4E4CA4CB25E4740_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_99A0953FB81ED360C4E4CA4CB25E4740" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_99A0953FB81ED360C4E4CA4CB25E4740" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_99A0953FB81ED360C4E4CA4CB25E4740" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentAbstract_99A0953FB81ED360C4E4CA4CB25E4740" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Major Classes of Property and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_6DF8A43A2E4190FA5718CA4CB25E9369" xlink:type="arc"/>
<link:label id="lab_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA_label_en-US" xlink:label="lab_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Other Obligations [Abstract] </link:label>
<link:label id="lab_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA_documentation_en-US" xlink:label="lab_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt and Other Obligations [Abstract} </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DebtAndOtherObligationsAbstract" xlink:label="loc_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA" xlink:to="lab_gsv_DebtAndOtherObligationsAbstract_20EBD483897198DCC0E0B39101E92EDA" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743" xlink:to="lab_us-gaap_DebtInstrumentTable_0F84E6CBF4C143350A2FB39101E9C743" xlink:type="arc"/>
<link:label id="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989_terseLabel_en-US" xlink:label="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tender offer attribute [Axis] </link:label>
<link:label id="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989_label_en-US" xlink:label="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tender offer attribute [Axis] </link:label>
<link:label id="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989_documentation_en-US" xlink:label="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tender offer attribute [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TenderOfferAttributeAxis" xlink:label="loc_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:to="lab_gsv_TenderOfferAttributeAxis_9A2EDB89995F20809463B39101E9E989" xlink:type="arc"/>
<link:label id="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD_terseLabel_en-US" xlink:label="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tender offer attribute [Domain] </link:label>
<link:label id="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD_label_en-US" xlink:label="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tender offer attribute [Domain] </link:label>
<link:label id="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD_documentation_en-US" xlink:label="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Tender offer attribute [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TenderOfferAttributeDomain" xlink:label="loc_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:to="lab_gsv_TenderOfferAttributeDomain_38EA837EEEF7C3E8A233B39101E984DD" xlink:type="arc"/>
<link:label id="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B_terseLabel_en-US" xlink:label="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Principal [Member] </link:label>
<link:label id="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B_label_en-US" xlink:label="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Principal [Member] </link:label>
<link:label id="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B_documentation_en-US" xlink:label="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Principal [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PrincipalMember" xlink:label="loc_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:to="lab_gsv_PrincipalMember_B4613F0552DA7504D16EB39101E9387B" xlink:type="arc"/>
<link:label id="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75_terseLabel_en-US" xlink:label="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amount offered prior to settlement date [Member] </link:label>
<link:label id="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75_label_en-US" xlink:label="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amount offered prior to settlement date [Member] </link:label>
<link:label id="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75_documentation_en-US" xlink:label="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount offered prior to settlement date [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmountOfferedPriorToSettlementDateMember" xlink:label="loc_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:to="lab_gsv_AmountOfferedPriorToSettlementDateMember_6915F39962B71D285FBCB39101E96C75" xlink:type="arc"/>
<link:label id="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502_terseLabel_en-US" xlink:label="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amount validly tendered [Member] </link:label>
<link:label id="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502_label_en-US" xlink:label="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amount validly tendered [Member] </link:label>
<link:label id="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502_documentation_en-US" xlink:label="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount validly tendered [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmountValidlyTenderedMember" xlink:label="loc_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:to="lab_gsv_AmountValidlyTenderedMember_B942D0421C71A6A827C6B39101EAE502" xlink:type="arc"/>
<link:label id="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40_terseLabel_en-US" xlink:label="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amount redeemed after tender [Member] </link:label>
<link:label id="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40_label_en-US" xlink:label="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amount redeemed after tender [Member] </link:label>
<link:label id="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40_documentation_en-US" xlink:label="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount redeemed after tender [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmountRedeemedAfterTenderMember" xlink:label="loc_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:to="lab_gsv_AmountRedeemedAfterTenderMember_6464D9E59D8364E73346B39101EA4C40" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34" xlink:to="lab_us-gaap_DebtInstrumentAxis_18B2E9AA57D24B21E240B39101EA7F34" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B" xlink:to="lab_us-gaap_DebtInstrumentNameDomain_E79BFB26136165750285B39101EAF72B" xlink:type="arc"/>
<link:label id="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F_terseLabel_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fixed Rate - High Yield Bonds, 7.75% Secured Notes [Member] </link:label>
<link:label id="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F_label_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fixed Rate - High Yield Bonds, 7.75% Secured Notes [Member] </link:label>
<link:label id="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F_documentation_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Fixed Rate - High Yield Bonds, 7.75% Secured Notes </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_FixedRateHighYieldBonds775SecuredNotesMember" xlink:label="loc_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:to="lab_gsv_FixedRateHighYieldBonds775SecuredNotesMember_6FC1D9FABC5BED319EB3B39101EA604F" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label>
<link:label id="lab_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2" xlink:to="lab_us-gaap_LongtermDebtTypeAxis_E0B74C3AABFF3615E259B39101EAEFB2" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label>
<link:label id="lab_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E" xlink:to="lab_us-gaap_LongtermDebtTypeDomain_0617A96B6A54278BE990B39101EA901E" xlink:type="arc"/>
<link:label id="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE_terseLabel_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Previously outstanding 2012 secured notes tranche A [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE_label_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche A [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE_documentation_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche A [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_A2012SecuredNotesTrancheMember" xlink:label="loc_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:to="lab_gsv_A2012SecuredNotesTrancheMember_3FE533E24523B15C595AB39101EA85AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC" xlink:to="lab_us-gaap_DebtInstrumentLineItems_BADAD5D50F88F9CC1021B39101EA99EC" xlink:type="arc"/>
<link:label id="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60_terseLabel_en-US" xlink:label="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tender Offer Amount </link:label>
<link:label id="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60_label_en-US" xlink:label="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tender Offer Amount </link:label>
<link:label id="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60_documentation_en-US" xlink:label="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tender Offer Amount </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TenderOfferAmount" xlink:label="loc_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:to="lab_gsv_TenderOfferAmount_AF66449D2F4A88CBDDB2B39101EAFD60" xlink:type="arc"/>
<link:label id="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D_terseLabel_en-US" xlink:label="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity contribution—7.75% Secured Notes from affiliate </link:label>
<link:label id="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D_label_en-US" xlink:label="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, Non-Cash Retirement of Debt Exchanged for Members Equity </link:label>
<link:label id="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D_documentation_en-US" xlink:label="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, Non-Cash Retirement of Debt Exchanged for Members Equity </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity" xlink:label="loc_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:to="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_A74CF819A93ECBA92A3DB39101EA5B5D" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAndQualifyingAccountsAbstract_56094BCDC56B68FC6A6CB39100E1A79C_label_en-US" xlink:label="lab_us-gaap_ValuationAndQualifyingAccountsAbstract_56094BCDC56B68FC6A6CB39100E1A79C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation and Qualifying Accounts [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_56094BCDC56B68FC6A6CB39100E1A79C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_56094BCDC56B68FC6A6CB39100E1A79C" xlink:to="lab_us-gaap_ValuationAndQualifyingAccountsAbstract_56094BCDC56B68FC6A6CB39100E1A79C" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Valuation and Qualifying Accounts Disclosure [Table] </link:label>
<link:label id="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2_label_en-US" xlink:label="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation and Qualifying Accounts Disclosure [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2" xlink:to="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_EFDF941DDFD3C19812B5B39100E1E6D2" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves Type [Axis] </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesTypeAxis_89A44A49DC5E8EF4E2DDB39100E103E5" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves [Domain] </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesDomain_FEEF7FE384C3D057A15BB39100E6B026" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allowance for Doubtful Accounts [Member] </link:label>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Allowance for Doubtful Accounts [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsMember" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsMember_767DD4F8E5995FECBF97B39100E63750" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Valuation and Qualifying Accounts Disclosure [Line Items] </link:label>
<link:label id="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA_label_en-US" xlink:label="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation and Qualifying Accounts Disclosure [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA" xlink:to="lab_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_5696CF92411DC6D42B78B39100E66ACA" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> End of year balance </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves, Balance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesBalance_5D8FBB62803D5485B332B39100E683E9" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Charged to operations </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves, Additions for Charges to Cost and Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_F2C4885E18288192B74CB39100E61B5A" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Credited to operations </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves, Deductions </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDeductions" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesDeductions_5F01ED05DC83D2F5C294B39100E6FAF1" xlink:type="arc"/>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Written off </link:label>
<link:label id="lab_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612_label_en-US" xlink:label="lab_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Valuation Allowances and Reserves, Additions for Recoveries </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesRecoveries" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612" xlink:to="lab_us-gaap_ValuationAllowancesAndReservesRecoveries_93F0D649E048F2EEE477B39100E6D612" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_45F027A1DA65728640EAB39101CBE529_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract_45F027A1DA65728640EAB39101CBE529" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transactions [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_45F027A1DA65728640EAB39101CBE529" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_45F027A1DA65728640EAB39101CBE529" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract_45F027A1DA65728640EAB39101CBE529" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_C667C433950837A14B43B39101CB5433" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Components [Axis] </link:label>
<link:label id="lab_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Components [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608" xlink:to="lab_us-gaap_StatementEquityComponentsAxis_5CDA76C1733B5321634EB39101CBF608" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2_verboseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Equity Component [Domain] </link:label>
<link:label id="lab_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Component [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2" xlink:to="lab_us-gaap_EquityComponentDomain_56D2182218017CD67802B39101CBD6E2" xlink:type="arc"/>
<link:label id="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661_terseLabel_en-US" xlink:label="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Members' Capital [Member] </link:label>
<link:label id="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661_label_en-US" xlink:label="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Capital [Member] </link:label>
<link:label id="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661_documentation_en-US" xlink:label="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Members' Capital [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_MembersCapitalMember" xlink:label="loc_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:to="lab_gsv_MembersCapitalMember_42217935D3CC79DB4CF0B39101CB3661" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD_terseLabel_en-US" xlink:label="lab_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Scenario [Axis] </link:label>
<link:label id="lab_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD_label_en-US" xlink:label="lab_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Scenario [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD" xlink:to="lab_us-gaap_StatementScenarioAxis_9D6EFBD74C6F6583CC7AB39101D0CDFD" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3_terseLabel_en-US" xlink:label="lab_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Scenario, Unspecified [Domain] </link:label>
<link:label id="lab_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3_label_en-US" xlink:label="lab_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Scenario, Unspecified [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3" xlink:to="lab_us-gaap_ScenarioUnspecifiedDomain_592F278C57F04BCBC481B39101D0CAA3" xlink:type="arc"/>
<link:label id="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6_terseLabel_en-US" xlink:label="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity contribution related to debt repayment [Member] </link:label>
<link:label id="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6_label_en-US" xlink:label="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity contribution related to debt repayment [Member] </link:label>
<link:label id="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6_documentation_en-US" xlink:label="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Equity contribution related to debt repayment </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_EquitycontributionrelatedtodebtrepaymentMember" xlink:label="loc_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:to="lab_gsv_EquitycontributionrelatedtodebtrepaymentMember_BA2722A3D8E7408062C1B39101D030E6" xlink:type="arc"/>
<link:label id="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666_terseLabel_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net Equity contribution from parent [Member] </link:label>
<link:label id="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666_label_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Equity contribution from parent [Member] </link:label>
<link:label id="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666_documentation_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Net Equity contribution from parent </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_NetEquitycontributionfromparentMember" xlink:label="loc_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:to="lab_gsv_NetEquitycontributionfromparentMember_939C51D487B70EDB3A2CB39101D01666" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_42B193E12C136996F829B39101D07B3D" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Domain] </link:label>
<link:label id="lab_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509" xlink:to="lab_us-gaap_RelatedPartyDomain_5F69B4054592C2CABB12B39101D06509" xlink:type="arc"/>
<link:label id="lab_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274_terseLabel_en-US" xlink:label="lab_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label>
<link:label id="lab_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274_label_en-US" xlink:label="lab_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffiliatedEntityMember" xlink:label="loc_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274" xlink:to="lab_us-gaap_AffiliatedEntityMember_FDBFD47AF7EDB1F2FE18B39101D14274" xlink:type="arc"/>
<link:label id="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846_terseLabel_en-US" xlink:label="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> High Yield Bonds [Member] </link:label>
<link:label id="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846_label_en-US" xlink:label="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> High Yield Bonds [Member] </link:label>
<link:label id="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846_documentation_en-US" xlink:label="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> High Yield Bonds [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_HighYieldBondsMember" xlink:label="loc_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:to="lab_gsv_HighYieldBondsMember_FD17ABA241A7F39F3EE2B39101D1A846" xlink:type="arc"/>
<link:label id="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C_terseLabel_en-US" xlink:label="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2012 Secured Notes [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C_label_en-US" xlink:label="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> 2012 Secured Notes [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C_documentation_en-US" xlink:label="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> 2012 Secured Notes [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_A2012SecuredNotesMember" xlink:label="loc_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:to="lab_gsv_A2012SecuredNotesMember_E11571C05EBD31B21285B3F3B1F5330C" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C" xlink:to="lab_us-gaap_RelatedPartyTransactionLineItems_02B2872EE639F105089DB39101D1298C" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property management fee, percent fee </link:label>
<link:label id="lab_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839_label_en-US" xlink:label="lab_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Management Fee, Percent Fee </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyManagementFeePercentFee" xlink:label="loc_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839" xlink:to="lab_us-gaap_PropertyManagementFeePercentFee_D64B21C8A8BC6C27B4A5B39101D17839" xlink:type="arc"/>
<link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6_verboseLabel_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Management Fee </link:label>
<link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6_label_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Management Fee Expense Related Party </link:label>
<link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6_documentation_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of expenses charged by affiliate related to the management services to maintain, market, operate, manage and administer the towers. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ManagementFeeExpenseRelatedParty" xlink:label="loc_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:to="lab_gsv_ManagementFeeExpenseRelatedParty_612F932CF084355E05C1B39101D146B6" xlink:type="arc"/>
<link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10_terseLabel_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label>
<link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10_label_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label>
<link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10_documentation_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty" xlink:label="loc_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:to="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_A2B989EC549F848A2848B39101D1DD10" xlink:type="arc"/>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25_verboseLabel_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment, Related Party </link:label>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25_label_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment, Related Party </link:label>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25_documentation_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Costs incurred with related parties that are directly related to generating revenues from leased and rented property or equipment. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty" xlink:label="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:to="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_BF5589C1973FECCE1652B39101D15C25" xlink:type="arc"/>
<link:label id="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE_terseLabel_en-US" xlink:label="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rent Revenue of Leased and Rented Property or Equipment, Related Party </link:label>
<link:label id="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE_label_en-US" xlink:label="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Rent Revenue of Leased and Rented Property or Equipment, Related Party </link:label>
<link:label id="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE_documentation_en-US" xlink:label="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Rent Revenue of Leased and Rented Property or Equipment, Related Party </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty" xlink:label="loc_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:to="lab_gsv_RentRevenueofLeasedandRentedPropertyorEquipmentRelatedParty_AC476DC75276785AAA2FB39101D19EDE" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Contribution (Distribution) from/to Member </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) Due from Affiliates </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:label="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627" xlink:to="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E66D39135A19D81596DAB39101D15627" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Previously outstanding Debt Instrument, Interest Rate, Stated Percentage </link:label>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6BFCFE11E0363E330F5BB39101D1D29E" xlink:type="arc"/>
<link:label id="lab_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4_verboseLabel_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Principal amount </link:label>
<link:label id="lab_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4_label_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExtinguishmentOfDebtAmount" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4" xlink:to="lab_us-gaap_ExtinguishmentOfDebtAmount_C6FA0C773734AACCE8EFB39101D12DA4" xlink:type="arc"/>
<link:label id="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_D939FC4CB9A18182DAABB39101D1B9E5_verboseLabel_en-US" xlink:label="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_D939FC4CB9A18182DAABB39101D1B9E5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, Non-Cash Retirement of Debt Exchanged for Members Equity </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity" xlink:label="loc_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_D939FC4CB9A18182DAABB39101D1B9E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_D939FC4CB9A18182DAABB39101D1B9E5" xlink:to="lab_gsv_StockIssuedDuringPeriodValueNonCashRetirementofDebtExchangedforMembersEquity_D939FC4CB9A18182DAABB39101D1B9E5" xlink:type="arc"/>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7_negatedLabel_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Interest Expense and Amortization of Deferred Financing Costs, Related Party </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7_label_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Expense and Amortization of Deferred Financing Costs, Related Party </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7_documentation_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cost incurred with third parties for borrowed funds and the amortization of deferred financing costs accounted for as interest that was charged against earnings during the period. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty" xlink:label="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:to="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_08CE63F4AFE728255ECBB39101D245A7" xlink:type="arc"/>
<link:label id="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108_negatedLabel_en-US" xlink:label="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid </link:label>
<link:label id="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108_label_en-US" xlink:label="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid" xlink:label="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108" xlink:to="lab_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid_118796A531820ABE6976B39101D2F108" xlink:type="arc"/>
<link:label id="lab_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D_label_en-US" xlink:label="lab_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Taxes [Abstract] </link:label>
<link:label id="lab_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D_documentation_en-US" xlink:label="lab_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Income Taxes [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_IncomeTaxesAbstract" xlink:label="loc_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D" xlink:to="lab_gsv_IncomeTaxesAbstract_CDE9A348266D7CE5A0838B1E0524604D" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Taxes </link:label>
<link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C" xlink:to="lab_us-gaap_IncomeTaxDisclosureTextBlock_786B4603AC46681D6F258B1E0524B29C" xlink:type="arc"/>
<link:label id="lab_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8_label_en-US" xlink:label="lab_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Summary of Significant Accounting Policies [Abstract] </link:label>
<link:label id="lab_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8_documentation_en-US" xlink:label="lab_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Summary of Significant Accounting Policies [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SummaryOfSignificantAccountingPoliciesAbstract" xlink:label="loc_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8" xlink:to="lab_gsv_SummaryOfSignificantAccountingPoliciesAbstract_CF4D648BBAF53582AFE5B5129495D1F8" xlink:type="arc"/>
<link:label id="lab_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567_terseLabel_en-US" xlink:label="lab_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessor, Lease, Description [Table] </link:label>
<link:label id="lab_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567_label_en-US" xlink:label="lab_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessor, Lease, Description [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LessorLeaseDescriptionTable" xlink:label="loc_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567" xlink:to="lab_us-gaap_LessorLeaseDescriptionTable_1AE023987E4F788FE479B515F4725567" xlink:type="arc"/>
<link:label id="lab_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2_terseLabel_en-US" xlink:label="lab_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessor, Lease, Description [Line Items] </link:label>
<link:label id="lab_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2_label_en-US" xlink:label="lab_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessor, Lease, Description [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LessorLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2" xlink:to="lab_us-gaap_LessorLeaseDescriptionLineItems_FABD2D00715632F6ABA4B515F47581A2" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash Equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743" xlink:to="lab_us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy_9F87986030ED56F91B35B5129495E743" xlink:type="arc"/>
<link:label id="lab_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335_terseLabel_en-US" xlink:label="lab_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables Allowance </link:label>
<link:label id="lab_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335_label_en-US" xlink:label="lab_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Trade and Other Accounts Receivable, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335" xlink:to="lab_us-gaap_TradeAndOtherAccountsReceivablePolicy_D7A9D5CCE13DA2DE10F4B51294950335" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Leases [Policy Text Block] </link:label>
<link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B_label_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Leases [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B" xlink:to="lab_us-gaap_LesseeLeasesPolicyTextBlock_98D43F0E12ECDC2F2CECB51553F49E2B" xlink:type="arc"/>
<link:label id="lab_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2_terseLabel_en-US" xlink:label="lab_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessor, Leases [Policy Text Block] </link:label>
<link:label id="lab_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2_label_en-US" xlink:label="lab_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessor, Leases [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LessorLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2" xlink:to="lab_us-gaap_LessorLeasesPolicyTextBlock_229747C57E6073EFE28BB5166878F2C2" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_40CBDEB8C1AA1144F30AB51294958531" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligations </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationsPolicy" xlink:label="loc_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8" xlink:to="lab_us-gaap_AssetRetirementObligationsPolicy_A1E559CEEE7CD685253AB5129495C8A8" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_118CBDB8DCACB093D701B51294969034" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets </link:label>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_82D65657AF009F3E50D1B51294966139" xlink:type="arc"/>
<link:label id="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE_terseLabel_en-US" xlink:label="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Credits </link:label>
<link:label id="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE_label_en-US" xlink:label="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Credits [Policy Text Block] </link:label>
<link:label id="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE_documentation_en-US" xlink:label="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Policy for accounting for deferred credits </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DeferredCreditsPolicyTextBlock" xlink:label="loc_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:to="lab_gsv_DeferredCreditsPolicyTextBlock_930A5065F4FE0979F957B512949608AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Financing Costs </link:label>
<link:label id="lab_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9_label_en-US" xlink:label="lab_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Charges, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredChargesPolicyTextBlock" xlink:label="loc_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9" xlink:to="lab_us-gaap_DeferredChargesPolicyTextBlock_7AFAE766DED44D9A2BFBB51294964AC9" xlink:type="arc"/>
<link:label id="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066_terseLabel_en-US" xlink:label="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued Estimated Property Taxes </link:label>
<link:label id="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066_label_en-US" xlink:label="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Estimated Property Taxes Policy [Text Block] </link:label>
<link:label id="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066_documentation_en-US" xlink:label="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Disclosure of accounting policy related to accrued estimated property taxes </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock" xlink:label="loc_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:to="lab_gsv_AccruedEstimatedPropertyTaxesPolicyTextBlock_C9C2A5CCBB9E4AC28F83B5129496E066" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue Recognition </link:label>
<link:label id="lab_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63_label_en-US" xlink:label="lab_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue Recognition, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63" xlink:to="lab_us-gaap_RevenueRecognitionPolicyTextBlock_599F73E69EFDE756EC98B51294960C63" xlink:type="arc"/>
<link:label id="lab_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cost of Operations </link:label>
<link:label id="lab_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986_label_en-US" xlink:label="lab_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost of Sales, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesPolicyTextBlock" xlink:label="loc_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986" xlink:to="lab_us-gaap_CostOfSalesPolicyTextBlock_D0CB41C58FB2A4748DD3B5129496E986" xlink:type="arc"/>
<link:label id="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874_terseLabel_en-US" xlink:label="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Management Fee </link:label>
<link:label id="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874_label_en-US" xlink:label="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Management Fee, Policy [Policy Text Block] </link:label>
<link:label id="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874_documentation_en-US" xlink:label="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Management Fee, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ManagementFeePolicyPolicyTextBlock" xlink:label="loc_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:to="lab_gsv_ManagementFeePolicyPolicyTextBlock_5E66522723EE9486BAB3B5129496E874" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Taxes </link:label>
<link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB_label_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB" xlink:to="lab_us-gaap_IncomeTaxPolicyTextBlock_DDEB4DFE7A6275F36E7EB5129496F9DB" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Values </link:label>
<link:label id="lab_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA_label_en-US" xlink:label="lab_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value of Financial Instruments, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA" xlink:to="lab_us-gaap_FairValueOfFinancialInstrumentsPolicy_9688F26A2A947F894042B5129496BFDA" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Reporting Segments </link:label>
<link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300_label_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300" xlink:to="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_B29F222F01E2D59A96ECB51294967300" xlink:type="arc"/>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Recent Accounting Pronouncements </link:label>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> New Accounting Pronouncements, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_29E741155418F827A7A5B5129496E47F" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:label id="lab_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46_label_en-US" xlink:label="lab_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46" xlink:to="lab_us-gaap_StatementTable_BAADDEFB08B7F009B2DC76D30555BC46" xlink:type="arc"/>
<link:label id="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB_terseLabel_en-US" xlink:label="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Crown Castle International Corporation [Member] </link:label>
<link:label id="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB_label_en-US" xlink:label="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Crown Castle International Corporation [Member] </link:label>
<link:label id="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB_documentation_en-US" xlink:label="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Crown Castle International Corporation [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_CrownCastleInternationalCorporationMember" xlink:label="loc_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:to="lab_gsv_CrownCastleInternationalCorporationMember_4D33F681CFDFF2E9086C76D305554DAB" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:label id="lab_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7" xlink:to="lab_us-gaap_StatementLineItems_DD38D6FBB3CC53DD2C2376D30555ECB7" xlink:type="arc"/>
<link:label id="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B_terseLabel_en-US" xlink:label="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity contribution - income taxes </link:label>
<link:label id="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B_label_en-US" xlink:label="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Non-cash Equity Contribution (Distribution) Due to (from) Affiliates, Income Taxes </link:label>
<link:label id="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B_documentation_en-US" xlink:label="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The amount of non-cash equity contribution (distribution) due to (from) affiliate related to income taxes for the use by the Company of the tax attributes from other members of the Company’s federal consolidated group. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes" xlink:label="loc_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:to="lab_gsv_NoncashEquityContributionDistributionDuetofromAffiliatesIncomeTaxes_780DBE14370AA5D5695A76D30556C22B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Valuation allowances </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Valuation Allowance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8" xlink:to="lab_us-gaap_DeferredTaxAssetsValuationAllowance_D76F05BBD8522908BE8C76D30556F1A8" xlink:type="arc"/>
<link:label id="lab_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446_negatedLabel_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Change in unrecognized tax benefits </link:label>
<link:label id="lab_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446_label_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Unrecognized Tax Benefits, Period Increase (Decrease) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446" xlink:to="lab_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_E9E2807C587245F01D0876D30556F446" xlink:type="arc"/>
<link:label id="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C_terseLabel_en-US" xlink:label="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Movement in Valuation Allowances and Reserves </link:label>
<link:label id="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C_label_en-US" xlink:label="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Movement in Valuation Allowances and Reserves [Table Text Block] </link:label>
<link:label id="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C_documentation_en-US" xlink:label="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Movement in Valuation Allowances and Reserves [Table Text Block] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_MovementinValuationAllowancesandReservesTableTextBlock" xlink:label="loc_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:to="lab_gsv_MovementinValuationAllowancesandReservesTableTextBlock_145B97ACEDFFA0E29F40CA4CB1FAF35C" xlink:type="arc"/>
<link:label id="lab_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7_label_en-US" xlink:label="lab_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Basis of Presentation [Abstract] </link:label>
<link:label id="lab_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7_documentation_en-US" xlink:label="lab_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Basis of Presentation [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_BasisOfPresentationAbstract" xlink:label="loc_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7" xlink:to="lab_gsv_BasisOfPresentationAbstract_B9325FDA523062B68538B391028889F7" xlink:type="arc"/>
<link:label id="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B_terseLabel_en-US" xlink:label="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Axis] </link:label>
<link:label id="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B_label_en-US" xlink:label="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Axis] </link:label>
<link:label id="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B_documentation_en-US" xlink:label="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ContractualTermsAxis" xlink:label="loc_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:to="lab_gsv_ContractualTermsAxis_6B7C822C90958A624C01B39102880A4B" xlink:type="arc"/>
<link:label id="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7_terseLabel_en-US" xlink:label="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Domain] </link:label>
<link:label id="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7_label_en-US" xlink:label="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Domain] </link:label>
<link:label id="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7_documentation_en-US" xlink:label="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Contractual Terms [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ContractualTermsDomain" xlink:label="loc_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:to="lab_gsv_ContractualTermsDomain_D0023D917083BC5D0C93B3910288DDB7" xlink:type="arc"/>
<link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65_terseLabel_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Sprint Master Lease Agreements [Member] </link:label>
<link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65_label_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Master Lease Agreements [Member] </link:label>
<link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65_documentation_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Master Lease Agreements [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember" xlink:label="loc_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:to="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_E9D2BFA76A8E9BE04D33B39102889E65" xlink:type="arc"/>
<link:label id="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806_terseLabel_en-US" xlink:label="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tower Count </link:label>
<link:label id="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806_label_en-US" xlink:label="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tower Count </link:label>
<link:label id="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806_documentation_en-US" xlink:label="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the Company's tower count. Inclusive of towers and other structures, such as rooftops </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TowerCount" xlink:label="loc_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:to="lab_gsv_TowerCount_F0C7E17F20889025EEE0B39102882806" xlink:type="arc"/>
<link:label id="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4_terseLabel_en-US" xlink:label="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tower count as a percentage of total towers </link:label>
<link:label id="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4_label_en-US" xlink:label="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tower count as a percentage of total towers </link:label>
<link:label id="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4_documentation_en-US" xlink:label="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tower count as a percentage of total towers </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Towercountasapercentageoftotaltowers" xlink:label="loc_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:to="lab_gsv_Towercountasapercentageoftotaltowers_4613476FCFD13ADE4B35B39102899BB4" xlink:type="arc"/>
<link:label id="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB_terseLabel_en-US" xlink:label="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ground Lease Agreement Initial Term </link:label>
<link:label id="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB_label_en-US" xlink:label="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Ground Lease Agreement Term </link:label>
<link:label id="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB_documentation_en-US" xlink:label="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> This disclosure represents the term of the Company’s ground lease agreements </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_GroundLeaseAgreementTerm" xlink:label="loc_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:to="lab_gsv_GroundLeaseAgreementTerm_13636EDB8A20942A1199B39102899CFB" xlink:type="arc"/>
<link:label id="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845_terseLabel_en-US" xlink:label="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase Option Price </link:label>
<link:label id="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845_label_en-US" xlink:label="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Purchase Option Price </link:label>
<link:label id="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845_documentation_en-US" xlink:label="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> This element relates to the total future purchase option price. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PurchaseOptionPrice" xlink:label="loc_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:to="lab_gsv_PurchaseOptionPrice_2984C11FDC0F0DF265C3B39102894845" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Tax Expense (Benefit) </link:label>
<link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_1FE4BF0E53AC4723299476D3B00AFFD1" xlink:type="arc"/>
<link:label id="lab_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Current Federal </link:label>
<link:label id="lab_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2_label_en-US" xlink:label="lab_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Federal Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2" xlink:to="lab_us-gaap_CurrentFederalTaxExpenseBenefit_04D0F549436BD9934EF776D38DF851C2" xlink:type="arc"/>
<link:label id="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Current State </link:label>
<link:label id="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2_label_en-US" xlink:label="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current State and Local Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2" xlink:to="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_439C264162C4640562FB76D38DF82EA2" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Federal </link:label>
<link:label id="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B_label_en-US" xlink:label="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Federal Income Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B" xlink:to="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_C494C4504A68F25D213676D38DF89A0B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Deferred State </link:label>
<link:label id="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055_label_en-US" xlink:label="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred State and Local Income Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055" xlink:to="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_1F6335B8722FEF60CB8876D38DF81055" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeasesAbstract_9F4F2576205EF0E9A956CA4CB25F2A7A_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract_9F4F2576205EF0E9A956CA4CB25F2A7A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeasesAbstract" xlink:label="loc_us-gaap_LeasesAbstract_9F4F2576205EF0E9A956CA4CB25F2A7A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeasesAbstract_9F4F2576205EF0E9A956CA4CB25F2A7A" xlink:to="lab_us-gaap_LeasesAbstract_9F4F2576205EF0E9A956CA4CB25F2A7A" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases </link:label>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B" xlink:to="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_9485DE79C0CC21D545B4CA4CB25FC11B" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Leases </link:label>
<link:label id="lab_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Rent Expense [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRentExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC" xlink:to="lab_us-gaap_ScheduleOfRentExpenseTableTextBlock_44A0D814D7246806348CCA4CB25FCABC" xlink:type="arc"/>
<link:label id="lab_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421_label_en-US" xlink:label="lab_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures </link:label>
<link:label id="lab_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421_documentation_en-US" xlink:label="lab_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_FairValueDisclosures" xlink:label="loc_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421" xlink:to="lab_gsv_FairValueDisclosures_0D12DA4E8D897DF18D72CA4CB264B421" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, by Balance Sheet Grouping [Table] </link:label>
<link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, by Balance Sheet Grouping [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D" xlink:to="lab_us-gaap_FairValueByBalanceSheetGroupingTable_9740F5666E6E9027C969CA4CB264176D" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Hierarchy [Axis] </link:label>
<link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Hierarchy [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_E265C7B31844D19A9570CA4CB26452CE" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Measurements, Fair Value Hierarchy [Domain] </link:label>
<link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Hierarchy [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B561C4AAD4747CD1B7EBCA4CB2642EBE" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 1 [Member] </link:label>
<link:label id="lab_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 1 [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E" xlink:to="lab_us-gaap_FairValueInputsLevel1Member_DDBCD51F2B8D5A4AC582CA4CB2648B5E" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 2 [Member] </link:label>
<link:label id="lab_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 2 [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23" xlink:to="lab_us-gaap_FairValueInputsLevel2Member_59184FDB1B7FA99324A3CA4CB2640C23" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] </link:label>
<link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB_label_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB" xlink:to="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_E9513E9731516A1ACCD5CA4CB2647CBB" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83_netLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, carrying value </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_1C1BF17BFE5E0266F5B6CA4CB2649F83" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, fair value </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Fair Value Disclosure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909" xlink:to="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4D2CE735C62A48CD2EBBCA4CB2656909" xlink:type="arc"/>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash, carrying value </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Cash Equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalents" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalents_4E5BE1EC7B1E5BC0F0D1CA4CB2652127" xlink:type="arc"/>
<link:label id="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE_terseLabel_en-US" xlink:label="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash, fair value </link:label>
<link:label id="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE_label_en-US" xlink:label="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash Fair Value Disclosure </link:label>
<link:label id="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE_documentation_en-US" xlink:label="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The fair value of cash and cash equivalent items which are restricted as to withdrawal or usage. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RestrictedCashFairValueDisclosure" xlink:label="loc_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:to="lab_gsv_RestrictedCashFairValueDisclosure_E1DDB250CF3FF2BE78CCCA4CB2659DBE" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt and other obligations, carrying amount </link:label>
<link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8_label_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Capital Lease Obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8" xlink:to="lab_us-gaap_DebtAndCapitalLeaseObligations_0BCB0A57649F031C4962CA4CB265E9C8" xlink:type="arc"/>
<link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3_terseLabel_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt and other obligations, fair value </link:label>
<link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3_label_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt And Capital Lease Obligations Fair Value Disclosures </link:label>
<link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3_documentation_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sum of the fair values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures" xlink:label="loc_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:to="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_A43CF77847491AE8A67FCA4CB265B5B3" xlink:type="arc"/>
<link:label id="lab_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94_label_en-US" xlink:label="lab_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies [Abstract] </link:label>
<link:label id="lab_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94_documentation_en-US" xlink:label="lab_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_CommitmentsAndContingenciesAbstract" xlink:label="loc_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94" xlink:to="lab_gsv_CommitmentsAndContingenciesAbstract_63F54706CAA1DFF0E348B39101783C94" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Axis] </link:label>
<link:label id="lab_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C" xlink:to="lab_us-gaap_IncomeStatementLocationAxis_62D61395296DACFAF3C4B39101791B1C" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Domain] </link:label>
<link:label id="lab_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8" xlink:to="lab_us-gaap_IncomeStatementLocationDomain_49EAC6EA1EA0317ED560B3910179A2E8" xlink:type="arc"/>
<link:label id="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02_terseLabel_en-US" xlink:label="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property Taxes [Member] </link:label>
<link:label id="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02_label_en-US" xlink:label="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Taxes [Member] </link:label>
<link:label id="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02_documentation_en-US" xlink:label="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Property Taxes [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PropertyTaxesMember" xlink:label="loc_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:to="lab_gsv_PropertyTaxesMember_15EFAD1367441AF29688B39101799B02" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Parties to Contractual Arrangement [Axis] </link:label>
<link:label id="lab_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190_label_en-US" xlink:label="lab_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease Arrangement, Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseArrangementTypeAxis" xlink:label="loc_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190" xlink:to="lab_us-gaap_LeaseArrangementTypeAxis_F9D5B14A57928F309948B39101796190" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Parties to Contractual Arrangement [Domain] </link:label>
<link:label id="lab_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091_label_en-US" xlink:label="lab_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease Arrangement, Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseArrangementTypeDomain" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091" xlink:to="lab_us-gaap_LeaseArrangementTypeDomain_63457000E19132A74C56B39101792091" xlink:type="arc"/>
<link:label id="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E_terseLabel_en-US" xlink:label="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Sprint [Member] </link:label>
<link:label id="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E_label_en-US" xlink:label="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sprint [Member] </link:label>
<link:label id="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E_documentation_en-US" xlink:label="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sprint </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SprintMember" xlink:label="loc_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:to="lab_gsv_SprintMember_A37375C289DBF45727E4B3910179560E" xlink:type="arc"/>
<link:label id="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B_terseLabel_en-US" xlink:label="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase option, percentage of towers </link:label>
<link:label id="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B_label_en-US" xlink:label="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Purchase Option, Percentage of Towers </link:label>
<link:label id="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B_documentation_en-US" xlink:label="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Purchase Option, Percentage of Towers </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PurchaseOptionPercentageofTowers" xlink:label="loc_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:to="lab_gsv_PurchaseOptionPercentageofTowers_2F1FCEEB1E406891BC94B391017A1D2B" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accretion expense related to liabilities for contingent retirement obligations </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation, Accretion Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B" xlink:to="lab_us-gaap_AssetRetirementObligationAccretionExpense_E4802B8545813E45F741B391017A646B" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A_terseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset retirement obligation </link:label>
<link:label id="lab_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A_label_en-US" xlink:label="lab_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Retirement Obligation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A" xlink:to="lab_us-gaap_AssetRetirementObligation_BB7A35AEC49C1BCB6B62B391017AB89A" xlink:type="arc"/>
<link:label id="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752_terseLabel_en-US" xlink:label="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset retirement obligation future outlay </link:label>
<link:label id="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752_label_en-US" xlink:label="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Estimated Future Undiscounted Cash Flows Expected To Be Paid Relating To Asset Retirement Obligations </link:label>
<link:label id="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752_documentation_en-US" xlink:label="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> This disclosure represents the estimated future undiscounted cash flows expected to be paid relating to asset retirement obligations </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations" xlink:label="loc_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:to="lab_gsv_EstimatedFutureUndiscountedCashFlowsExpectedToBePaidRelatingToAssetRetirementObligations_04AEF779D84B58A2D2DCB391017AA752" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payments for other taxes </link:label>
<link:label id="lab_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499_label_en-US" xlink:label="lab_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments for Other Taxes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForOtherTaxes" xlink:label="loc_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499" xlink:to="lab_us-gaap_PaymentsForOtherTaxes_C7865F0C1FA8C21EB0BAB391017AE499" xlink:type="arc"/>
<link:label id="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6_terseLabel_en-US" xlink:label="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase in property tax commitment </link:label>
<link:label id="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6_label_en-US" xlink:label="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Tax Commitments Annual Percentage Increase </link:label>
<link:label id="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6_documentation_en-US" xlink:label="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Property tax commitments annual percentage increase. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PropertyTaxCommitmentsAnnualPercentageIncrease" xlink:label="loc_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:to="lab_gsv_PropertyTaxCommitmentsAnnualPercentageIncrease_FF99D09ADA40CADEE77EB391017A0DD6" xlink:type="arc"/>
<link:label id="lab_us-gaap_SupplementalCashFlowElementsAbstract_517B531D2F7A18012AF3CA4CB26CA050_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract_517B531D2F7A18012AF3CA4CB26CA050" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Elements [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowElementsAbstract_517B531D2F7A18012AF3CA4CB26CA050" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract_517B531D2F7A18012AF3CA4CB26CA050" xlink:to="lab_us-gaap_SupplementalCashFlowElementsAbstract_517B531D2F7A18012AF3CA4CB26CA050" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information </link:label>
<link:label id="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785_label_en-US" xlink:label="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flow, Supplemental Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:label="loc_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785" xlink:to="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_B9C33FB8AA2217CEED8ECA4CB26CE785" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures </link:label>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_86E9AAF2C4D66329FF19CA4CB249EF70" xlink:type="arc"/>
<link:label id="lab_us-gaap_GuaranteesAbstract_3E80BE455B45CBDA6FBECA4CB266E4DD_label_en-US" xlink:label="lab_us-gaap_GuaranteesAbstract_3E80BE455B45CBDA6FBECA4CB266E4DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantees [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteesAbstract" xlink:label="loc_us-gaap_GuaranteesAbstract_3E80BE455B45CBDA6FBECA4CB266E4DD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteesAbstract_3E80BE455B45CBDA6FBECA4CB266E4DD" xlink:to="lab_us-gaap_GuaranteesAbstract_3E80BE455B45CBDA6FBECA4CB266E4DD" xlink:type="arc"/>
<link:label id="lab_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Guarantor Subsidiaries </link:label>
<link:label id="lab_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F_label_en-US" xlink:label="lab_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantees [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteesTextBlock" xlink:label="loc_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F" xlink:to="lab_us-gaap_GuaranteesTextBlock_D08C145C321E4FED0A85CA4CB266F27F" xlink:type="arc"/>
<link:label id="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549_terseLabel_en-US" xlink:label="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Year [Axis] </link:label>
<link:label id="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549_label_en-US" xlink:label="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Year [Axis] </link:label>
<link:label id="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549_documentation_en-US" xlink:label="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Year [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_YearAxis" xlink:label="loc_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:to="lab_gsv_YearAxis_B2B7AC3AA5FE7C811F1CB391022FB549" xlink:type="arc"/>
<link:label id="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6_terseLabel_en-US" xlink:label="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Year [Domain] </link:label>
<link:label id="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6_label_en-US" xlink:label="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Year [Domain] </link:label>
<link:label id="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6_documentation_en-US" xlink:label="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Year [Axis] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_YearDomain" xlink:label="loc_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:to="lab_gsv_YearDomain_5FD03B98F4C6119BE0F5B391022F38E6" xlink:type="arc"/>
<link:label id="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0_terseLabel_en-US" xlink:label="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2018 [Member] </link:label>
<link:label id="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0_label_en-US" xlink:label="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2016 [Member] </link:label>
<link:label id="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0_documentation_en-US" xlink:label="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2016 [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmortizationExpense2016Member" xlink:label="loc_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:to="lab_gsv_AmortizationExpense2016Member_3D287C2E64A1EA3825ABB391022F28C0" xlink:type="arc"/>
<link:label id="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7_terseLabel_en-US" xlink:label="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2019 [Member] </link:label>
<link:label id="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7_label_en-US" xlink:label="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2017 [Member] </link:label>
<link:label id="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7_documentation_en-US" xlink:label="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2017 [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmortizationExpense2017Member" xlink:label="loc_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:to="lab_gsv_AmortizationExpense2017Member_0519EE0BCBDE2ECC42F3B391022F9FB7" xlink:type="arc"/>
<link:label id="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669_terseLabel_en-US" xlink:label="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2020 [Member] </link:label>
<link:label id="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669_label_en-US" xlink:label="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2018 [Member] </link:label>
<link:label id="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669_documentation_en-US" xlink:label="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2018 [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Amortizationexpense2018Member" xlink:label="loc_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:to="lab_gsv_Amortizationexpense2018Member_2E0972683D325C8E6721B3910230A669" xlink:type="arc"/>
<link:label id="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2_terseLabel_en-US" xlink:label="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2021 [Member] [Domain] </link:label>
<link:label id="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2_label_en-US" xlink:label="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2019 [Member] [Domain] </link:label>
<link:label id="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2_documentation_en-US" xlink:label="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2019 [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Amortizationexpense2019MemberDomain" xlink:label="loc_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:to="lab_gsv_Amortizationexpense2019MemberDomain_A879E6E89644C4C83E03B39102304AC2" xlink:type="arc"/>
<link:label id="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116_terseLabel_en-US" xlink:label="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2022 [Member] </link:label>
<link:label id="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116_label_en-US" xlink:label="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2020 [Member] </link:label>
<link:label id="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116_documentation_en-US" xlink:label="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense, 2020 [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Amortizationexpense2020Member" xlink:label="loc_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:to="lab_gsv_Amortizationexpense2020Member_65EC84F074DDEA93FAF0B39102300116" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13_terseLabel_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets [Member] </link:label>
<link:label id="lab_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13_label_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIntangibleAssetsMember" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13" xlink:to="lab_us-gaap_OtherIntangibleAssetsMember_720721AACD60C296766CB39102305A13" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementScenarioAxis_2DFAAE7430EEF942A518B39102305686_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementScenarioAxis_2DFAAE7430EEF942A518B39102305686" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Statement, Scenario [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_2DFAAE7430EEF942A518B39102305686" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementScenarioAxis_2DFAAE7430EEF942A518B39102305686" xlink:to="lab_us-gaap_StatementScenarioAxis_2DFAAE7430EEF942A518B39102305686" xlink:type="arc"/>
<link:label id="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912_terseLabel_en-US" xlink:label="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion [Member] </link:label>
<link:label id="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912_label_en-US" xlink:label="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion [Member] </link:label>
<link:label id="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912_documentation_en-US" xlink:label="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DepreciationAmortizationAndAccretionMember" xlink:label="loc_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:to="lab_gsv_DepreciationAmortizationAndAccretionMember_313966ECC300001D808BB3910230A912" xlink:type="arc"/>
<link:label id="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D_terseLabel_en-US" xlink:label="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site Rental Costs of Operations [Member] </link:label>
<link:label id="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D_label_en-US" xlink:label="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Site Rental Costs of Operations [Member] </link:label>
<link:label id="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D_documentation_en-US" xlink:label="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Site Rental Costs of Operations </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SiteRentalCostsOfOperationsMember" xlink:label="loc_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:to="lab_gsv_SiteRentalCostsOfOperationsMember_1720D29095521BDB9FE9B3910230101D" xlink:type="arc"/>
<link:label id="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F_terseLabel_en-US" xlink:label="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of Above Market Leases </link:label>
<link:label id="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F_label_en-US" xlink:label="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Above Market Leases </link:label>
<link:label id="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F_documentation_en-US" xlink:label="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization expense for the current year related to the Company’s above-market leases recorded in site rental costs of operations </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmortizationofAboveMarketLeases" xlink:label="loc_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:to="lab_gsv_AmortizationofAboveMarketLeases_FDC813ABEB2452058E0FB3910230BF4F" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Gross </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsGross_63F7FD21BFC0038D53C2B3910235B6A8" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2018 </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_1611548E0A732E759D2CB39102351D34" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2019 </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_84A0B0D43618CF1A1FF1B3910235F524" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_BB7EE21EA79F5105F2AEB39102358694" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Four </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_DCABED6E1304D33FA2E0B3910236A00B" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_229499D25369F8FE281BB391023696E0" xlink:type="arc"/>
<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of Intangible Assets </link:label>
<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05_label_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Intangible Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05" xlink:to="lab_us-gaap_AmortizationOfIntangibleAssets_40E8F82E429E67A49265B3910236BC05" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Accumulated Amortization </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Accumulated Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_733B84B75E6D7CC9F643B3910236DFE4" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets, net </link:label>
<link:label id="lab_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884_label_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIntangibleAssetsNet" xlink:label="loc_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884" xlink:to="lab_us-gaap_OtherIntangibleAssetsNet_F547C0A677016ABB1491B3910236D884" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Net </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNet_8228F4CA59E4DAAC0BCDB391023663C3" xlink:type="arc"/>
<link:label id="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B_terseLabel_en-US" xlink:label="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Expected Above-Market Lease Amortization Expense </link:label>
<link:label id="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B_label_en-US" xlink:label="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Expected Above-Market Lease Amortization Expense </link:label>
<link:label id="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B_documentation_en-US" xlink:label="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Expected amortization expense related to the Company’s above-market leases recorded in site rental costs of operations </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ExpectedAboveMarketLeaseAmortizationExpense" xlink:label="loc_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:to="lab_gsv_ExpectedAboveMarketLeaseAmortizationExpense_C4E6B16BB848CA449689B3910236701B" xlink:type="arc"/>
<link:label id="lab_us-gaap_RisksAndUncertaintiesAbstract_D3ADE73AFE0E814B6303CA4CB1999977_label_en-US" xlink:label="lab_us-gaap_RisksAndUncertaintiesAbstract_D3ADE73AFE0E814B6303CA4CB1999977" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Risks and Uncertainties [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="loc_us-gaap_RisksAndUncertaintiesAbstract_D3ADE73AFE0E814B6303CA4CB1999977" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RisksAndUncertaintiesAbstract_D3ADE73AFE0E814B6303CA4CB1999977" xlink:to="lab_us-gaap_RisksAndUncertaintiesAbstract_D3ADE73AFE0E814B6303CA4CB1999977" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> A Summary of the Percentage of the Consolidated Revenues for Those Customers Accounting for More than 10% of the Consolidated Revenues </link:label>
<link:label id="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327" xlink:to="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_C4ABE0AAA7C3085DD63BCA4CB199E327" xlink:type="arc"/>
<link:label id="lab_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B_label_en-US" xlink:label="lab_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document and Entity Information </link:label>
<link:label id="lab_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B_documentation_en-US" xlink:label="lab_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Document and Entity Information [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DocumentAndEntityInformation" xlink:label="loc_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B" xlink:to="lab_gsv_DocumentAndEntityInformation_7B2372703A4163FADC03CA4CB093186B" xlink:type="arc"/>
<link:label id="lab_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4_terseLabel_en-US" xlink:label="lab_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entities [Table] </link:label>
<link:label id="lab_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4_label_en-US" xlink:label="lab_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entities [Table] </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntitiesTable" xlink:label="loc_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4" xlink:to="lab_dei_EntitiesTable_3EA15261A0761F9824CECA4CB09349E4" xlink:type="arc"/>
<link:label id="lab_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Legal Entity [Axis] </link:label>
<link:label id="lab_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8_label_en-US" xlink:label="lab_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Legal Entity [Axis] </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8" xlink:to="lab_dei_LegalEntityAxis_FEB59CE32A86E2FE3988CA4CB093E8C8" xlink:type="arc"/>
<link:label id="lab_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F_terseLabel_en-US" xlink:label="lab_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity [Domain] </link:label>
<link:label id="lab_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F_label_en-US" xlink:label="lab_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity [Domain] </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F" xlink:to="lab_dei_EntityDomain_8E08F062D99367AC3A5ECA4CB093999F" xlink:type="arc"/>
<link:label id="lab_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26_terseLabel_en-US" xlink:label="lab_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Information [Line Items] </link:label>
<link:label id="lab_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26_label_en-US" xlink:label="lab_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Information [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityInformationLineItems" xlink:label="loc_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26" xlink:to="lab_dei_EntityInformationLineItems_0514F14D3597413F9D93CA4CB0936A26" xlink:type="arc"/>
<link:label id="lab_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label>
<link:label id="lab_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F_label_en-US" xlink:label="lab_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F" xlink:to="lab_dei_EntityRegistrantName_ABE6A6368A080AD6FF33CA4CB094023F" xlink:type="arc"/>
<link:label id="lab_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label>
<link:label id="lab_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999" xlink:to="lab_dei_EntityCentralIndexKey_B521B9B9779B2D67BA04CA4CB0947999" xlink:type="arc"/>
<link:label id="lab_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label>
<link:label id="lab_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F" xlink:to="lab_dei_CurrentFiscalYearEndDate_CAAA60C03A96CDA12DE1CA4CB0944A5F" xlink:type="arc"/>
<link:label id="lab_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:label id="lab_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF_label_en-US" xlink:label="lab_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF" xlink:to="lab_dei_EntityFilerCategory_424D9DA3199072348B31CA4CB094D9EF" xlink:type="arc"/>
<link:label id="lab_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB_terseLabel_en-US" xlink:label="lab_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Type </link:label>
<link:label id="lab_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB_label_en-US" xlink:label="lab_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Type </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB" xlink:to="lab_dei_DocumentType_8C6841E396E259F58C01CA4CB094C8AB" xlink:type="arc"/>
<link:label id="lab_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Period End Date </link:label>
<link:label id="lab_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Period End Date </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00" xlink:to="lab_dei_DocumentPeriodEndDate_D21080CEFC3BC7334945CA4CB0949E00" xlink:type="arc"/>
<link:label id="lab_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Fiscal Year Focus </link:label>
<link:label id="lab_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Fiscal Year Focus </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7" xlink:to="lab_dei_DocumentFiscalYearFocus_C2445947E7624A0ABA37CA4CB0945CA7" xlink:type="arc"/>
<link:label id="lab_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Fiscal Period Focus </link:label>
<link:label id="lab_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Fiscal Period Focus </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51" xlink:to="lab_dei_DocumentFiscalPeriodFocus_8E86F9218F6D2C46ED7ACA4CB0941E51" xlink:type="arc"/>
<link:label id="lab_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amendment Flag </link:label>
<link:label id="lab_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4_label_en-US" xlink:label="lab_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amendment Flag </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4" xlink:to="lab_dei_AmendmentFlag_63623820238148E6352ECA4CB094EDE4" xlink:type="arc"/>
<link:label id="lab_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:label id="lab_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3" xlink:to="lab_dei_EntityCommonStockSharesOutstanding_BEA4D315C70D134CAA59CA4CB0943EF3" xlink:type="arc"/>
<link:label id="lab_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21_terseLabel_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Well-known Seasoned Issuer </link:label>
<link:label id="lab_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21_label_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Well-known Seasoned Issuer </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer_091ECD35BD5E1F99941DCA4CB094BF21" xlink:type="arc"/>
<link:label id="lab_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916_terseLabel_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Voluntary Filers </link:label>
<link:label id="lab_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916_label_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Voluntary Filers </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916" xlink:to="lab_dei_EntityVoluntaryFilers_6D49F3F8262926B7D08CCA4CB0941916" xlink:type="arc"/>
<link:label id="lab_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:label id="lab_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49" xlink:to="lab_dei_EntityCurrentReportingStatus_95BAD55676C5024E8381CA4CB0947C49" xlink:type="arc"/>
<link:label id="lab_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A_terseLabel_en-US" xlink:label="lab_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Public Float </link:label>
<link:label id="lab_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A_label_en-US" xlink:label="lab_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Public Float </link:label>
<link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A" xlink:to="lab_dei_EntityPublicFloat_26B06465643439D14039CA4CB094A12A" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_90463C290F54DDBE9167B38EA734637D_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_90463C290F54DDBE9167B38EA734637D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_90463C290F54DDBE9167B38EA734637D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_90463C290F54DDBE9167B38EA734637D" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract_90463C290F54DDBE9167B38EA734637D" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows from operating activities: </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_7316AB5260DEFAA69DCDB38EA735B94A" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740_verboseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Net income (loss) </link:label>
<link:label id="lab_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740_label_en-US" xlink:label="lab_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740" xlink:to="lab_us-gaap_ProfitLoss_D767FB66DB92159BDE56B38EA736E740" xlink:type="arc"/>
<link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Adjustments to reconcile net income (loss) to net cash provided by operating activities: </link:label>
<link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_8EBF0A06439E66845FAAB38EA7362ADA" xlink:type="arc"/>
<link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, amortization and accretion </link:label>
<link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD_label_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD" xlink:to="lab_us-gaap_DepreciationAmortizationAndAccretionNet_DB3FE19C3C5BF664467EB38EA736D6AD" xlink:type="arc"/>
<link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB_terseLabel_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of deferred financing costs </link:label>
<link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB_label_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization Of Deferred Financing Costs And Other Noncash Interest </link:label>
<link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB_documentation_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The components of interest expense representing the non-cash expenses against earnings in the period including amortization of deferred financing costs, interest rate swaps, adjustments on long-term debt and other non-cash interest. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest" xlink:label="loc_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:to="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_E30A05DB1022C36560AEB38EA736E8BB" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891_terseLabel_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset write-down charges </link:label>
<link:label id="lab_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891_label_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Impairment Charges </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891" xlink:to="lab_us-gaap_AssetImpairmentCharges_61A1E18BC037B36295C6B38EA7369891" xlink:type="arc"/>
<link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2_negatedLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> (Gains) losses on retirement of debt </link:label>
<link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2_label_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Extinguishment of Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2" xlink:to="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_6C5684064F6400E7A894B38EA7367FC2" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income tax benefit (provision) </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Tax Expense (Benefit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_223E94DEC99A13E4462EB38EA736CF2E" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Changes in assets and liabilities: </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Operating Capital [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_ABB023563B491A2D03A8B38EA736EA2C" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in accrued interest </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Interest Payable, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_77F15AC42B137145D518B38EA736BB24" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in accounts payable </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Payable, Trade </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_F9ED5EB0E683E8A06D29B38EA7360362" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in deferred revenues, deferred ground lease payable, and other liabilities </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ACB54EB83B1E88576DFDB38EA7361E25" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Decrease (increase) in receivables </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Receivables </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171" xlink:to="lab_us-gaap_IncreaseDecreaseInReceivables_5834FB1C10521372BA83B38EA7368171" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Decrease (increase) in other current assets, deferred site rental receivable, long-term prepaid rent, restricted cash, and other assets </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7466B9221288B6600BBBB38EA736E4B8" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) operating activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9B2C2D2076CCBC03DF03B38EA736358E" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows from investing activities: </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_81717238DB4AD1772520B38EA736C603" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Capital expenditures </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Productive Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8" xlink:to="lab_us-gaap_PaymentsToAcquireProductiveAssets_4F685851EE7D1655328CB38EA7362EA8" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Other investing activities </link:label>
<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments for (Proceeds from) Other Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8" xlink:to="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_27797D9F18A171838B39B38EA7373FC8" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments for acquisitions of businesses, net of cash acquired </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Businesses, Net of Cash Acquired </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_E6245ACBC38561BFB05FB38EA737A835" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) investing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9F2F0262FF1B38BC1A8EB38EA737BCC8" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows from financing activities: </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_85F40EBD5A4F64DC7E9CB38EA737D4FF" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from issuance of long-term debt </link:label>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Issuance of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_5BABCD230B31164A28BBB38EA7378D78" xlink:type="arc"/>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Purchases and redemptions of debt </link:label>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D" xlink:to="lab_us-gaap_RepaymentsOfLongTermDebt_DF4EF5FDF092D25E0AF0B38EA737EE0D" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments for financing costs </link:label>
<link:label id="lab_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D_label_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments of Financing Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D" xlink:to="lab_us-gaap_PaymentsOfFinancingCosts_18775AD5B44EF4974D8CB38EA737949D" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net (increase) decrease in restricted cash </link:label>
<link:label id="lab_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB_label_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from (Repayments of) Restricted Cash, Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB" xlink:to="lab_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_8EE0941CE825B4FB402BB38EA73796FB" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) financing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_5436166AA488E6A4418DB38EA7379CD9" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E_totalLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net increase (decrease) in cash and cash equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Period Increase (Decrease) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_336F17772C7CFBE6803FB38EA737324E" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_241A12436F6C84CC25C2B38EA7374C32_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_241A12436F6C84CC25C2B38EA7374C32" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents at beginning of year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_241A12436F6C84CC25C2B38EA7374C32" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_241A12436F6C84CC25C2B38EA7374C32" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_241A12436F6C84CC25C2B38EA7374C32" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_8ACD80F78F11A569CA6FB38EA7378C5E_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_8ACD80F78F11A569CA6FB38EA7378C5E" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents at end of year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_8ACD80F78F11A569CA6FB38EA7378C5E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_8ACD80F78F11A569CA6FB38EA7378C5E" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_8ACD80F78F11A569CA6FB38EA7378C5E" xlink:type="arc"/>
<link:label id="lab_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC_label_en-US" xlink:label="lab_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Segments and Concentrations of Credit Risk [Abstract] </link:label>
<link:label id="lab_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC_documentation_en-US" xlink:label="lab_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Operating Segments and Concentrations of Credit Risk [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract" xlink:label="loc_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC" xlink:to="lab_gsv_OperatingSegmentsAndConcentrationsOfCreditRiskAbstract_ADD66C23EE57C0431EAFB391013B3EFC" xlink:type="arc"/>
<link:label id="lab_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC_terseLabel_en-US" xlink:label="lab_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Major Customers [Axis] </link:label>
<link:label id="lab_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC_label_en-US" xlink:label="lab_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorCustomersAxis" xlink:label="loc_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC" xlink:to="lab_us-gaap_MajorCustomersAxis_69889DD10E44D87E9D3DB391013BD9BC" xlink:type="arc"/>
<link:label id="lab_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31_terseLabel_en-US" xlink:label="lab_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Name of Major Customer [Domain] </link:label>
<link:label id="lab_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31_label_en-US" xlink:label="lab_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NameOfMajorCustomerDomain" xlink:label="loc_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31" xlink:to="lab_us-gaap_NameOfMajorCustomerDomain_680DA54F2256DDC8920DB391013B9E31" xlink:type="arc"/>
<link:label id="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F_terseLabel_en-US" xlink:label="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> AT&T [Member] </link:label>
<link:label id="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F_label_en-US" xlink:label="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> AT T [Member] </link:label>
<link:label id="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F_documentation_en-US" xlink:label="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> AT&T </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AtTMember" xlink:label="loc_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:to="lab_gsv_AtTMember_49713C81B443B85EBE11B391013B224F" xlink:type="arc"/>
<link:label id="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB_terseLabel_en-US" xlink:label="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> T-Mobile [Member] </link:label>
<link:label id="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB_label_en-US" xlink:label="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> T-Mobile [Member] </link:label>
<link:label id="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB_documentation_en-US" xlink:label="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> T-Mobile </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TMobileMember" xlink:label="loc_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:to="lab_gsv_TMobileMember_10F78B84FE7D3AE11F3CB391013BE5CB" xlink:type="arc"/>
<link:label id="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632_terseLabel_en-US" xlink:label="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Verizon Wireless [Member] </link:label>
<link:label id="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632_label_en-US" xlink:label="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Verizon Wireless [Member] </link:label>
<link:label id="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632_documentation_en-US" xlink:label="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Verizon Wireless </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_VerizonWirelessMember" xlink:label="loc_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:to="lab_gsv_VerizonWirelessMember_FF6A286E8015F5572835B391013B2632" xlink:type="arc"/>
<link:label id="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B_terseLabel_en-US" xlink:label="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Sprint Clearwire Consolidation [Member] </link:label>
<link:label id="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B_label_en-US" xlink:label="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sprint Clearwire Consolidation [Member] </link:label>
<link:label id="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B_documentation_en-US" xlink:label="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sprint Clearwire Consolidation [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SprintClearwireConsolidationMember" xlink:label="loc_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:to="lab_gsv_SprintClearwireConsolidationMember_41595948CEF9B4CE71BDB391013B782B" xlink:type="arc"/>
<link:label id="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD_terseLabel_en-US" xlink:label="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> ATT Leap Wireless Consolidation [Member] </link:label>
<link:label id="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD_label_en-US" xlink:label="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> ATT Leap Wireless Consolidation [Member] </link:label>
<link:label id="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD_documentation_en-US" xlink:label="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> ATT Leap Wireless Consolidation [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ATTLeapWirelessConsolidationMember" xlink:label="loc_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:to="lab_gsv_ATTLeapWirelessConsolidationMember_2E0149CBD5AE47802A0BB391013B32AD" xlink:type="arc"/>
<link:label id="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE_terseLabel_en-US" xlink:label="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> T-Mobile Metro Consolidation [Member] </link:label>
<link:label id="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE_label_en-US" xlink:label="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> T-Mobile Metro Consolidation [Member] </link:label>
<link:label id="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE_documentation_en-US" xlink:label="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> T-Mobile Metro Consolidation [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TMobileMetroConsolidationMember" xlink:label="loc_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:to="lab_gsv_TMobileMetroConsolidationMember_3DB23BFFB0791E44F9E8B391013B60AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percentage of the consolidated revenues </link:label>
<link:label id="lab_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Concentration Risk, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43" xlink:to="lab_us-gaap_ConcentrationRiskPercentage1_72E15C5BABE5205E3E0BB391013B7E43" xlink:type="arc"/>
<link:label id="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD_terseLabel_en-US" xlink:label="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tower count </link:label>
<link:label id="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD_label_en-US" xlink:label="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tower Count Percentage </link:label>
<link:label id="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD_documentation_en-US" xlink:label="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the Company's tower count as a percentage of total towers. Inclusive of towers and other structures, such as rooftops. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TowerCountPercentage" xlink:label="loc_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:to="lab_gsv_TowerCountPercentage_2C05B6E221E73B216526B391013CC6AD" xlink:type="arc"/>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69_terseLabel_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted Average Remaining Term Of Tenant Leases </link:label>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69_label_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Remaining Term Of Tenant Leases </link:label>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69_documentation_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Weighted-average remaining term of tenant leases, exclusive of renewals at the tenant's option. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_WeightedAverageRemainingTermOfTenantLeases" xlink:label="loc_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:to="lab_gsv_WeightedAverageRemainingTermOfTenantLeases_9B72D541C526D3284EC1B391013C6D69" xlink:type="arc"/>
<link:label id="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31_terseLabel_en-US" xlink:label="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue from consolidated tenant during merger as percentage of net revenues </link:label>
<link:label id="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31_label_en-US" xlink:label="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from consolidated tenant during merger as percentage of net revenues </link:label>
<link:label id="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31_documentation_en-US" xlink:label="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents revenue from consolidated tenant during merger as percentage of consolidate net revenues. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues" xlink:label="loc_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:to="lab_gsv_Revenuefromconsolidatedtenantduringmergeraspercentageofnetrevenues_524AD0BA4D5B14F2A447B391013CFA31" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transactions Disclosure </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transactions Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_7BBD90610750D7818499CA4CB26B4688" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract_A675F44CCD2618A6AFFFCA4CB2477F24_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract_A675F44CCD2618A6AFFFCA4CB2477F24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract_A675F44CCD2618A6AFFFCA4CB2477F24" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract_A675F44CCD2618A6AFFFCA4CB2477F24" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureAbstract_A675F44CCD2618A6AFFFCA4CB2477F24" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation, by Property [Table] </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation, by Property [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationByPropertyTable_9AE9137DDD536F2585C7CA4CB2474939" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Name of Property [Axis] </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Name of Property [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_B7B51714A5E4D3E1EBF0CA4CB2474995" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Name of Property [Domain] </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Name of Property [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_E35A6D4025F4258255D0CA4CB2470C76" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C_terseLabel_en-US" xlink:label="lab_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:label id="lab_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C_label_en-US" xlink:label="lab_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C" xlink:to="lab_us-gaap_StatementGeographicalAxis_F09EEDCE3257B1C9A06CCA4CB248013C" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:label id="lab_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058_label_en-US" xlink:label="lab_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058" xlink:to="lab_us-gaap_SegmentGeographicalDomain_9BCDFEDBF0E23736342ECA4CB2489058" xlink:type="arc"/>
<link:label id="lab_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862_terseLabel_en-US" xlink:label="lab_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Real Estate, Type of Property [Axis] </link:label>
<link:label id="lab_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862_label_en-US" xlink:label="lab_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Real Estate, Type of Property [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862" xlink:to="lab_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2602DF6D5ABE4EFFE4C9CA4CB248B862" xlink:type="arc"/>
<link:label id="lab_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49_terseLabel_en-US" xlink:label="lab_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Real Estate [Domain] </link:label>
<link:label id="lab_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49_label_en-US" xlink:label="lab_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Real Estate [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49" xlink:to="lab_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_48E689D135980E66C966CA4CB248BF49" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationLineItems" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationLineItems_48F143F4F5C2FE609DB3CA4CB248A4D8" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Text Block] </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationDisclosureTextBlock_E1FCA01AF8B09F53548ECA4CB2483DD4" xlink:type="arc"/>
<link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510_terseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basis of Presentation </link:label>
<link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_CBECFF183866385BA676CA4CB1986510" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_AF595EF444BA70FAC80CB391021129E8_totalLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_AF595EF444BA70FAC80CB391021129E8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total debt and other obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_AF595EF444BA70FAC80CB391021129E8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_AF595EF444BA70FAC80CB391021129E8" xlink:to="lab_us-gaap_DebtAndCapitalLeaseObligations_AF595EF444BA70FAC80CB391021129E8" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Less: current maturities and short-term debt and other current obligations </link:label>
<link:label id="lab_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B_label_en-US" xlink:label="lab_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtCurrent" xlink:label="loc_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B" xlink:to="lab_us-gaap_DebtCurrent_ABE7F3D89B1955004E8BB39102110F3B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_70596EB930366BC8946AB39102118A07_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_70596EB930366BC8946AB39102118A07" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stated interest rate </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_70596EB930366BC8946AB39102118A07" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_70596EB930366BC8946AB39102118A07" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_70596EB930366BC8946AB39102118A07" xlink:type="arc"/>
<link:label id="lab_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Concentration of Credit Risk </link:label>
<link:label id="lab_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Concentration Risk Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:label="loc_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B" xlink:to="lab_us-gaap_ConcentrationRiskDisclosureTextBlock_6F2243DC6B5EEECF9A33CA4CB25D267B" xlink:type="arc"/>
<link:label id="lab_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37_label_en-US" xlink:label="lab_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule III Real Estate & Accumulated Depreciation [Abstract] </link:label>
<link:label id="lab_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37_documentation_en-US" xlink:label="lab_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Schedule III Real Estate & Accumulated Depreciation [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract" xlink:label="loc_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37" xlink:to="lab_gsv_ScheduleIIIRealEstateAccumulatedDepreciationAbstract_E0300812400D61049650724CF78CAC37" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0F2D4764C9FD3FC25F23724CF78DCDCD" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_0B2E17EB0FED08AFEA14724CF78D984C" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Gross </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentGross_87B1E19CB25593A12151724CF78D6C0B" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </link:label>
<link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C_label_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C" xlink:to="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_DA16DFEF2F761316E4DA724CF78D0D0C" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances </link:label>
<link:label id="lab_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817_label_en-US" xlink:label="lab_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817" xlink:to="lab_us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_0FA636039ADE04911D27724CF78D3817" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation </link:label>
<link:label id="lab_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971_label_en-US" xlink:label="lab_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAccumulatedDepreciation" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971" xlink:to="lab_us-gaap_RealEstateAccumulatedDepreciation_E27DE0BC4F92CA06E4C5724CF78D7971" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Gross </link:label>
<link:label id="lab_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C_label_en-US" xlink:label="lab_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateGrossAtCarryingValue" xlink:label="loc_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C" xlink:to="lab_us-gaap_RealEstateGrossAtCarryingValue_9C768AF31D10CB1766FD724CF78DEF6C" xlink:type="arc"/>
<link:label id="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7_terseLabel_en-US" xlink:label="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Wireless Infrastructure Construction </link:label>
<link:label id="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7_label_en-US" xlink:label="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Wireless Infrastructure Construction </link:label>
<link:label id="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7_documentation_en-US" xlink:label="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Additions - Wireless Infrastructure Construction </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_WirelessInfrastructureConstruction" xlink:label="loc_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:to="lab_gsv_WirelessInfrastructureConstruction_7CB3F5C0A0B8FAAB2C66724CF78D49E7" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Improvements </link:label>
<link:label id="lab_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5_label_en-US" xlink:label="lab_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Improvements </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateImprovements" xlink:label="loc_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5" xlink:to="lab_us-gaap_RealEstateImprovements_12DBDBABF372A9A65156724CF78E55B5" xlink:type="arc"/>
<link:label id="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02_terseLabel_en-US" xlink:label="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Real Estate Period Additions to Cost </link:label>
<link:label id="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02_label_en-US" xlink:label="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Real Estate Period Additions to Cost </link:label>
<link:label id="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02_documentation_en-US" xlink:label="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> SEC Schedule III - Total Real Estate Period Additions to Cost </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RealEstatePeriodAdditionstoCost" xlink:label="loc_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:to="lab_gsv_RealEstatePeriodAdditionstoCost_ACC43E27A764F9A3C7B4724CF78EDE02" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Cost of Real Estate Sold </link:label>
<link:label id="lab_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3_label_en-US" xlink:label="lab_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate, Cost of Real Estate Sold </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateCostOfRealEstateSold" xlink:label="loc_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3" xlink:to="lab_us-gaap_RealEstateCostOfRealEstateSold_73262BB7E783343AAEFA724CF78EF7A3" xlink:type="arc"/>
<link:label id="lab_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense </link:label>
<link:label id="lab_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F_label_en-US" xlink:label="lab_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense" xlink:label="loc_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F" xlink:to="lab_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_E90E20BD7757BD144E07724CF78EFE7F" xlink:type="arc"/>
<link:label id="lab_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE_terseLabel_en-US" xlink:label="lab_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold </link:label>
<link:label id="lab_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE_label_en-US" xlink:label="lab_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAccumulatedDepreciationRealEstateSold" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE" xlink:to="lab_us-gaap_RealEstateAccumulatedDepreciationRealEstateSold_C53FC60E6E00530AEE74724CF78E62FE" xlink:type="arc"/>
<link:label id="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202_terseLabel_en-US" xlink:label="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Real Estate Period Deductions to Accumulated Depreciation </link:label>
<link:label id="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202_label_en-US" xlink:label="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Real Estate Period Deductions to Accumulated Depreciation </link:label>
<link:label id="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202_documentation_en-US" xlink:label="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> SEC Schedule III - Real Estate Period Deductions to Accumulated Depreciation </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation" xlink:label="loc_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:to="lab_gsv_RealEstatePeriodDeductionstoAccumulatedDepreciation_727DF5A3BBED1B51085F724CF78EE202" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_C67A728919C5A836C401CA4CB250BECC" xlink:type="arc"/>
<link:label id="lab_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest expense on debt obligations </link:label>
<link:label id="lab_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Expense, Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06" xlink:to="lab_us-gaap_InterestExpenseDebt_07AA1958FC554AAFAA93CA4CB1C8FE06" xlink:type="arc"/>
<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of deferred financing costs </link:label>
<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Debt Issuance Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F" xlink:to="lab_us-gaap_AmortizationOfFinancingCosts_955ABE774A438ED99B7CCA4CB1C96C6F" xlink:type="arc"/>
<link:label id="lab_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of adjustments on long-term debt </link:label>
<link:label id="lab_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC_label_en-US" xlink:label="lab_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Debt Discount (Premium) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC" xlink:to="lab_us-gaap_AmortizationOfDebtDiscountPremium_33614AC6F38D9454449BCA4CB1C9DCFC" xlink:type="arc"/>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E_terseLabel_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E_label_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest expense and amortization of deferred financing costs </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E_documentation_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cost of borrowed funds and the amortization of interest rate swaps accounted for as interest that was charged against earnings during the period. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts" xlink:label="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:to="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_24B70701E4EF0DA1E6E2CA4CB1C93E5E" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplemental Disclosure of Cash Flow Information and Non-cash Investing and Financing Activities </link:label>
<link:label id="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB" xlink:to="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A1D841A66E7219CDAC38CA4CB252CDCB" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt and Other Obligations </link:label>
<link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97_label_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Capital Leases Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock" xlink:label="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97" xlink:to="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_B6E2552592DAF7D97E12CA4CB1435A97" xlink:type="arc"/>
<link:label id="lab_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Secured Debt [Member] </link:label>
<link:label id="lab_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503_label_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Secured Debt [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503" xlink:to="lab_us-gaap_SecuredDebtMember_16794FF7EB71013DE063B39102697503" xlink:type="arc"/>
<link:label id="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742_terseLabel_en-US" xlink:label="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tower Write-Down Charges [Member] </link:label>
<link:label id="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742_label_en-US" xlink:label="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tower Write-Down Charges [Member] </link:label>
<link:label id="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742_documentation_en-US" xlink:label="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tower write-down charges </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TowerWriteDownChargesMember" xlink:label="loc_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:to="lab_gsv_TowerWriteDownChargesMember_E4A0850DB6633C21F15BB3910269C742" xlink:type="arc"/>
<link:label id="lab_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6_terseLabel_en-US" xlink:label="lab_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Range [Axis] </link:label>
<link:label id="lab_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6_label_en-US" xlink:label="lab_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Range [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6" xlink:to="lab_us-gaap_RangeAxis_AF7175A95AE23E06E16CB391026E1BE6" xlink:type="arc"/>
<link:label id="lab_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25_terseLabel_en-US" xlink:label="lab_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Range [Domain] </link:label>
<link:label id="lab_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25_label_en-US" xlink:label="lab_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Range [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25" xlink:to="lab_us-gaap_RangeMember_06C0D5FAF1E2FE6899A9B391026F8A25" xlink:type="arc"/>
<link:label id="lab_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298_terseLabel_en-US" xlink:label="lab_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:label id="lab_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298_label_en-US" xlink:label="lab_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298" xlink:to="lab_us-gaap_MinimumMember_CB304E81CEE96D98E702B391026F3298" xlink:type="arc"/>
<link:label id="lab_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424_terseLabel_en-US" xlink:label="lab_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum [Member] </link:label>
<link:label id="lab_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424_label_en-US" xlink:label="lab_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424" xlink:to="lab_us-gaap_MaximumMember_C6A655C86E2D3023A664B391026F5424" xlink:type="arc"/>
<link:label id="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195_terseLabel_en-US" xlink:label="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Liability for Deferred Ground Lease Payable </link:label>
<link:label id="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195_label_en-US" xlink:label="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Liability for Deferred Ground Lease Payable </link:label>
<link:label id="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195_documentation_en-US" xlink:label="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Current Liability for Deferred Ground Lease Payable </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_CurrentLiabilityforDeferredGroundLeasePayable" xlink:label="loc_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:to="lab_gsv_CurrentLiabilityforDeferredGroundLeasePayable_74800BE39A6F5768B801B391026FE195" xlink:type="arc"/>
<link:label id="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458_terseLabel_en-US" xlink:label="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Liability for Accrued Property Taxes </link:label>
<link:label id="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458_label_en-US" xlink:label="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Liability for Accrued Property Taxes </link:label>
<link:label id="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458_documentation_en-US" xlink:label="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Current Liability for Accrued Property Taxes </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_CurrentLiabilityforAccruedPropertyTaxes" xlink:label="loc_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:to="lab_gsv_CurrentLiabilityforAccruedPropertyTaxes_5031AFE8881C8198B94BB391026FB458" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Finance Costs, Net </link:label>
<link:label id="lab_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Issuance Costs, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66" xlink:to="lab_us-gaap_DeferredFinanceCostsNet_A048EC999B4FF1E2E2F1B391026F5D66" xlink:type="arc"/>
<link:label id="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815_terseLabel_en-US" xlink:label="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue Recognition Non-cancelable Lease Term Range, Minimum </link:label>
<link:label id="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815_label_en-US" xlink:label="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Rent Revenue, Lease Term </link:label>
<link:label id="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815_documentation_en-US" xlink:label="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Rent Revenue, Lease Term </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RentRevenueLeaseTerm" xlink:label="loc_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:to="lab_gsv_RentRevenueLeaseTerm_28C21EB0CD06A8EBB3ADB391026FC815" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in restricted cash for operating activities </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Restricted Cash for Operating Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xlink:label="loc_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086" xlink:to="lab_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities_0DF62B1421817C508489B391026FA086" xlink:type="arc"/>
<link:label id="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390_terseLabel_en-US" xlink:label="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash, held by trustee to redeem outstanding notes payable </link:label>
<link:label id="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390_label_en-US" xlink:label="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash, Held by Trustee To Redeem Outstanding Notes Payable </link:label>
<link:label id="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390_documentation_en-US" xlink:label="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Restricted Cash, Held by Trustee To Redeem Outstanding Notes Payable </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable" xlink:label="loc_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:to="lab_gsv_RestrictedCashHeldbyTrusteeToRedeemOutstandingNotesPayable_BBA95CC6A8BA718E9A78B391026F2390" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Site rental customer contract estimated useful life, maximum (years) </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Useful Life </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_9D802049F9B8C6AD6DB1B391026F5D8D" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label>
<link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_9E9290DB82118D3CAAE3CA4CB0CB8579" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2018 </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_E99C38F59E48ADACC072B39101F2B7B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2019 </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0E1D060C548BFC1A8587B39101F2FEFF" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_C384557F61BE54E5E93CB39101F2BDC3" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Year Four </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_B2EA3BB66B6C645951F1B39101F256DF" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_197383E8B1BDB2C4BC75B39101F2EC75" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal after Year Five </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_C8616E3E9124E4B35006B39101F3A77A" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total Cash Obligations </link:label>
<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694" xlink:to="lab_us-gaap_DebtInstrumentCarryingAmount_AE809A0BF9889094D15BB39101F38694" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total Debt Outstanding </link:label>
<link:label id="lab_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D_label_en-US" xlink:label="lab_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D" xlink:to="lab_us-gaap_LongTermDebt_12A770BC5D0D70A9960FB39101F3E32D" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Unamortized Discount </link:label>
<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Unamortized Discount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24" xlink:to="lab_us-gaap_DebtInstrumentUnamortizedDiscount_BE33DEE318A29E412BC6B39101F3AF24" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated Fair Values and Carrying Amounts of Assets and Liabilities </link:label>
<link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, by Balance Sheet Grouping [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E" xlink:to="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_92972E7529F797F224ACCA4CB153D36E" xlink:type="arc"/>
<link:label id="lab_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614_label_en-US" xlink:label="lab_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Consolidated Balance Sheet (Parenthetical) [Abstract] </link:label>
<link:label id="lab_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614_documentation_en-US" xlink:label="lab_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Condensed Consolidated Balance Sheet (Parenthetical) [Abstract] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract" xlink:label="loc_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614" xlink:to="lab_gsv_CondensedConsolidatedBalanceSheetParentheticalAbstract_F6C77D91FEF4FD120938CA4CB1E8F614" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80_terseLabel_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Class of Stock [Axis] </link:label>
<link:label id="lab_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80_label_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Class of Stock [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80" xlink:to="lab_us-gaap_StatementClassOfStockAxis_D7B759570C2560EBA0E4CA4CB1E88A80" xlink:type="arc"/>
<link:label id="lab_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Class of Stock [Domain] </link:label>
<link:label id="lab_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8_label_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Class of Stock [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8" xlink:to="lab_us-gaap_ClassOfStockDomain_5662AF1FB0F399A1FAACCA4CB1E8F7A8" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Allowance for doubtful accounts receivable, current </link:label>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Allowance for Doubtful Accounts Receivable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_D122CA5D161B3047287ECA4CB1E9DA76" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label>
<link:label id="lab_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20" xlink:to="lab_us-gaap_IncomeStatementAbstract_3BF9C26E56697FA0A385B38C8A836B20" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B_terseLabel_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net revenues: </link:label>
<link:label id="lab_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B_label_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenues [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B" xlink:to="lab_us-gaap_RevenuesAbstract_BD039CBF8621C4C8D398B38C8A83C82B" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental revenues </link:label>
<link:label id="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Income Statement, Lease Revenue </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843" xlink:to="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_F7A7C4E4EC6D6A24AF79B38C8A856843" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating expenses: </link:label>
<link:label id="lab_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Expenses [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E" xlink:to="lab_us-gaap_OperatingExpensesAbstract_95B110F0FA25CBE86A81B38C8A8B8A1E" xlink:type="arc"/>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D_terseLabel_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental cost of operations—third parties(a) </link:label>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D_label_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment, Third Party </link:label>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D_documentation_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Costs incurred with third parties that are directly related to generating revenues from leased and rented property or equipment. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty" xlink:label="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:to="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_AF09BD63D10812678550B38C8A8C835D" xlink:type="arc"/>
<link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_8149279283E2203D67B0B38C8A8C9CE4_terseLabel_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_8149279283E2203D67B0B38C8A8C9CE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental cost of operations—related parties(a) </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty" xlink:label="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_8149279283E2203D67B0B38C8A8C9CE4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_8149279283E2203D67B0B38C8A8C9CE4" xlink:to="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_8149279283E2203D67B0B38C8A8C9CE4" xlink:type="arc"/>
<link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326_totalLabel_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Site rental cost of operations—total(a) </link:label>
<link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326_label_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment" xlink:label="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326" xlink:to="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_DD792A1224D9EB012DE7B38C8A8C2326" xlink:type="arc"/>
<link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_FEDBFBA7D5871EB5CDC5B38C8A8CD686_terseLabel_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_FEDBFBA7D5871EB5CDC5B38C8A8CD686" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Management fee—related party </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ManagementFeeExpenseRelatedParty" xlink:label="loc_gsv_ManagementFeeExpenseRelatedParty_FEDBFBA7D5871EB5CDC5B38C8A8CD686" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ManagementFeeExpenseRelatedParty_FEDBFBA7D5871EB5CDC5B38C8A8CD686" xlink:to="lab_gsv_ManagementFeeExpenseRelatedParty_FEDBFBA7D5871EB5CDC5B38C8A8CD686" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetImpairmentCharges_D2F4F83DFF726D5FFF4EB38C8A8C44FB_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_D2F4F83DFF726D5FFF4EB38C8A8C44FB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Asset write-down charges </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_D2F4F83DFF726D5FFF4EB38C8A8C44FB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetImpairmentCharges_D2F4F83DFF726D5FFF4EB38C8A8C44FB" xlink:to="lab_us-gaap_AssetImpairmentCharges_D2F4F83DFF726D5FFF4EB38C8A8C44FB" xlink:type="arc"/>
<link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_5FA4F61E0A0011FD9106B38C8A8CDF1D_verboseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_5FA4F61E0A0011FD9106B38C8A8CDF1D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, amortization, and accretion </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_5FA4F61E0A0011FD9106B38C8A8CDF1D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationAmortizationAndAccretionNet_5FA4F61E0A0011FD9106B38C8A8CDF1D" xlink:to="lab_us-gaap_DepreciationAmortizationAndAccretionNet_5FA4F61E0A0011FD9106B38C8A8CDF1D" xlink:type="arc"/>
<link:label id="lab_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E_totalLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating expenses </link:label>
<link:label id="lab_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E_label_en-US" xlink:label="lab_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Costs and Expenses </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E" xlink:to="lab_us-gaap_CostsAndExpenses_C891A24B2BE9614D3589B38C8A8C368E" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Operating income (loss) </link:label>
<link:label id="lab_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Income (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F" xlink:to="lab_us-gaap_OperatingIncomeLoss_7F1B920162B90C6D530BB38C8A8C373F" xlink:type="arc"/>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2_negatedTerseLabel_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Interest expense and amortization of deferred financing costs—third parties </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2_label_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Expense and Amortization of Deferred Financing Costs, Third Party </link:label>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2_documentation_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cost incurred with third parties for borrowed funds and the amortization of deferred financing costs accounted for as interest that was charged against earnings during the period. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty" xlink:label="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:to="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsThirdParty_1C440FD3DDD9FF8AF5E1B38C8A8C18F2" xlink:type="arc"/>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_10F4D24460EA361BEC0BB38C8A8C1046_negatedTerseLabel_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_10F4D24460EA361BEC0BB38C8A8C1046" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Interest expense and amortization of deferred financing costs—related parties </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty" xlink:label="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_10F4D24460EA361BEC0BB38C8A8C1046" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_10F4D24460EA361BEC0BB38C8A8C1046" xlink:to="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCostsRelatedParty_10F4D24460EA361BEC0BB38C8A8C1046" xlink:type="arc"/>
<link:label id="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_FA04507BED20102A4D88B38C8A8CFC90_negatedLabel_en-US" xlink:label="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_FA04507BED20102A4D88B38C8A8CFC90" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Interest expense and amortization of deferred financing costs </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts" xlink:label="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_FA04507BED20102A4D88B38C8A8CFC90" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_FA04507BED20102A4D88B38C8A8CFC90" xlink:to="lab_gsv_InterestExpenseAndAmortizationOfDeferredFinancingCosts_FA04507BED20102A4D88B38C8A8CFC90" xlink:type="arc"/>
<link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_61691CBA2AB2D67B84FDB38C8A8C9F58_terseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_61691CBA2AB2D67B84FDB38C8A8C9F58" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gains (losses) on retirement of debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_61691CBA2AB2D67B84FDB38C8A8C9F58" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_61691CBA2AB2D67B84FDB38C8A8C9F58" xlink:to="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_61691CBA2AB2D67B84FDB38C8A8C9F58" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other income (expense) </link:label>
<link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Nonoperating Income (Expense) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpense_5F422266A16F56DF7679B38C8A8D446E" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Income (loss) before income taxes </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5345066A3B8DAC220213B38C8A8D00BD" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_A9A9DAE78CD42D99977FB38C8A8D1F85_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_A9A9DAE78CD42D99977FB38C8A8D1F85" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Benefit (provision) for income taxes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_A9A9DAE78CD42D99977FB38C8A8D1F85" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_A9A9DAE78CD42D99977FB38C8A8D1F85" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_A9A9DAE78CD42D99977FB38C8A8D1F85" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProfitLoss_67BDD1FA8453E050FEC0B38C8A8D27F0_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_67BDD1FA8453E050FEC0B38C8A8D27F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income (loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_67BDD1FA8453E050FEC0B38C8A8D27F0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_67BDD1FA8453E050FEC0B38C8A8D27F0" xlink:to="lab_us-gaap_ProfitLoss_67BDD1FA8453E050FEC0B38C8A8D27F0" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-Term Debt Instruments </link:label>
<link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Debt [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B" xlink:to="lab_us-gaap_ScheduleOfDebtTableTextBlock_B62F943A335E41763A50CA4CB07DC40B" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Maturities of Long-term Debt </link:label>
<link:label id="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67_label_en-US" xlink:label="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Maturities of Long-term Debt [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67" xlink:to="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_F2CB761A8B0BD1A746CACA4CB07ECD67" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt </link:label>
<link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D_label_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock" xlink:label="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D" xlink:to="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_A9CC6C018CF45007BDC2CA4CB07E355D" xlink:type="arc"/>
<link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46_terseLabel_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule Of Interest Expense And Amortization Of Deferred Financing Costs [Text Block] </link:label>
<link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46_label_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule Of Interest Expense And Amortization Of Deferred Financing Costs [Text Block] </link:label>
<link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46_documentation_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Schedule of interest expense and amortization of deferred financing costs. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock" xlink:label="loc_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:to="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_FC8B669612ED08EC4AFFCA4CB07E5E46" xlink:type="arc"/>
<link:label id="lab_us-gaap_SubsequentEventsAbstract_5916A5BA5C3C835A0703CA4CB221538C_label_en-US" xlink:label="lab_us-gaap_SubsequentEventsAbstract_5916A5BA5C3C835A0703CA4CB221538C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Events [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_5916A5BA5C3C835A0703CA4CB221538C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventsAbstract_5916A5BA5C3C835A0703CA4CB221538C" xlink:to="lab_us-gaap_SubsequentEventsAbstract_5916A5BA5C3C835A0703CA4CB221538C" xlink:type="arc"/>
<link:label id="lab_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Subsequent Events </link:label>
<link:label id="lab_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508_label_en-US" xlink:label="lab_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Events [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508" xlink:to="lab_us-gaap_SubsequentEventsTextBlock_6EF9E60871444564C727CA4CB2216508" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Property, Plant and Equipment [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC_label_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC" xlink:to="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6D70E69B8F943A506BB757B09428EABC" xlink:type="arc"/>
<link:label id="lab_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0_terseLabel_en-US" xlink:label="lab_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Land [Member] </link:label>
<link:label id="lab_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0_label_en-US" xlink:label="lab_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Land [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0" xlink:to="lab_us-gaap_LandMember_D2B76781A78619AF6BC957B0942883B0" xlink:type="arc"/>
<link:label id="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02_terseLabel_en-US" xlink:label="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Wireless Infrastructure [Member] </link:label>
<link:label id="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02_label_en-US" xlink:label="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Wireless infrastructure [Member] </link:label>
<link:label id="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02_documentation_en-US" xlink:label="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Wireless infrastructure </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_WirelessInfrastructureMember" xlink:label="loc_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:to="lab_gsv_WirelessInfrastructureMember_2C79B9C16387A55DABD557B094291E02" xlink:type="arc"/>
<link:label id="lab_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402_terseLabel_en-US" xlink:label="lab_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Construction in Process [Member] </link:label>
<link:label id="lab_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402_label_en-US" xlink:label="lab_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Construction in Progress [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402" xlink:to="lab_us-gaap_ConstructionInProgressMember_F3C8FED7E24F67B4473257B094298402" xlink:type="arc"/>
<link:label id="lab_us-gaap_MinimumMember_1FE0F269B6DF97BFB7CA57B094298A54_verboseLabel_en-US" xlink:label="lab_us-gaap_MinimumMember_1FE0F269B6DF97BFB7CA57B094298A54" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_1FE0F269B6DF97BFB7CA57B094298A54" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinimumMember_1FE0F269B6DF97BFB7CA57B094298A54" xlink:to="lab_us-gaap_MinimumMember_1FE0F269B6DF97BFB7CA57B094298A54" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Line Items] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentLineItems_AB39B4421D14C0084FD257B094292C5D" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_D53C56469991A92DC5A457B0942958A5_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_D53C56469991A92DC5A457B0942958A5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total gross property and equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_D53C56469991A92DC5A457B0942958A5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_D53C56469991A92DC5A457B0942958A5" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentGross_D53C56469991A92DC5A457B0942958A5" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7797DD2ECDCBB6213FAD57B0942EAAEE_negatedLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7797DD2ECDCBB6213FAD57B0942EAAEE" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Less accumulated depreciation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7797DD2ECDCBB6213FAD57B0942EAAEE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7797DD2ECDCBB6213FAD57B0942EAAEE" xlink:to="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7797DD2ECDCBB6213FAD57B0942EAAEE" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total property and equipment, net </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_4AC13EE60CF4FA48433557B0942E9B52" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_47791D0B4FCB627A569E57B0942E93BC_netLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_47791D0B4FCB627A569E57B0942E93BC" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US"> Property, plant and equipment, useful life </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_47791D0B4FCB627A569E57B0942E93BC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_47791D0B4FCB627A569E57B0942E93BC" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_47791D0B4FCB627A569E57B0942E93BC" xlink:type="arc"/>
<link:label id="lab_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35_terseLabel_en-US" xlink:label="lab_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation expense </link:label>
<link:label id="lab_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35_label_en-US" xlink:label="lab_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35" xlink:to="lab_us-gaap_Depreciation_61786ED8F357B3FD8E3957B0942F1F35" xlink:type="arc"/>
<link:label id="lab_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Capital Leased Assets, Gross </link:label>
<link:label id="lab_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696_label_en-US" xlink:label="lab_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Leased Assets, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasedAssetsGross" xlink:label="loc_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696" xlink:to="lab_us-gaap_CapitalLeasedAssetsGross_CF5CF61D990BF9720AA357B0942F9696" xlink:type="arc"/>
<link:label id="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512_negatedTerseLabel_en-US" xlink:label="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation on Capital Lease Assets </link:label>
<link:label id="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512_label_en-US" xlink:label="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation on Capital Lease Assets </link:label>
<link:label id="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512_documentation_en-US" xlink:label="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation on Capital Lease Assets </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_AccumulatedDepreciationOnCapitalLeaseAssets" xlink:label="loc_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:to="lab_gsv_AccumulatedDepreciationOnCapitalLeaseAssets_A1ECC13DBEDACE079A6D57B0942FC512" xlink:type="arc"/>
<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplemental disclosure of cash flow information: </link:label>
<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract_0E911BC0D56AF7888753CA4CB25C5226" xlink:type="arc"/>
<link:label id="lab_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest paid </link:label>
<link:label id="lab_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174_label_en-US" xlink:label="lab_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Paid </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174" xlink:to="lab_us-gaap_InterestPaid_D170E0B3BFFC182F6212CA4CB25C7174" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_699425B7136C3ED559A8B3910298D89E_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract_699425B7136C3ED559A8B3910298D89E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Stockholders' Equity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_699425B7136C3ED559A8B3910298D89E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_699425B7136C3ED559A8B3910298D89E" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract_699425B7136C3ED559A8B3910298D89E" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementEquityComponentsAxis_942D23BF460EAA06F6D5B39102982689_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_942D23BF460EAA06F6D5B39102982689" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Member Equity [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_942D23BF460EAA06F6D5B39102982689" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_942D23BF460EAA06F6D5B39102982689" xlink:to="lab_us-gaap_StatementEquityComponentsAxis_942D23BF460EAA06F6D5B39102982689" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityComponentDomain_0316DF66C733A95ACBBCB39102989FB8_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_0316DF66C733A95ACBBCB39102989FB8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Members' Equity Total [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0316DF66C733A95ACBBCB39102989FB8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain_0316DF66C733A95ACBBCB39102989FB8" xlink:to="lab_us-gaap_EquityComponentDomain_0316DF66C733A95ACBBCB39102989FB8" xlink:type="arc"/>
<link:label id="lab_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Earnings (Deficit) [Member] </link:label>
<link:label id="lab_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5" xlink:to="lab_us-gaap_RetainedEarningsMember_3D332CCC49000EF7D19DB3910298F1B5" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity [Roll Forward] </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Stockholders' Equity [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868" xlink:to="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3EB3AAE7A260CE156CCBB39102985868" xlink:type="arc"/>
<link:label id="lab_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5_periodStartLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Balance, beginning </link:label>
<link:label id="lab_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5_label_en-US" xlink:label="lab_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5" xlink:to="lab_us-gaap_MembersEquity_54936A6A67364109D13EB391029D48D5" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E21707D98E8500A2336CB391029D7D74_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E21707D98E8500A2336CB391029D7D74" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contribution (Distribution) from/to Member </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:label="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_E21707D98E8500A2336CB391029D7D74" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_E21707D98E8500A2336CB391029D7D74" xlink:to="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_E21707D98E8500A2336CB391029D7D74" xlink:type="arc"/>
<link:label id="lab_us-gaap_MembersEquity_D316C47170C08A22E7C0B391029ED4A9_periodEndLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_D316C47170C08A22E7C0B391029ED4A9" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Balance, ending </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_D316C47170C08A22E7C0B391029ED4A9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersEquity_D316C47170C08A22E7C0B391029ED4A9" xlink:to="lab_us-gaap_MembersEquity_D316C47170C08A22E7C0B391029ED4A9" xlink:type="arc"/>
<link:label id="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771_terseLabel_en-US" xlink:label="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Leases </link:label>
<link:label id="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771_label_en-US" xlink:label="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases [Text Block] </link:label>
<link:label id="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771_documentation_en-US" xlink:label="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> This disclosure represents the Company’s tenant contracts and operating leases footnote. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_LeasesTextBlock" xlink:label="loc_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:to="lab_gsv_LeasesTextBlock_59F787D12B19A4DFF906CA4CB142F771" xlink:type="arc"/>
<link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967_terseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Summary of Significant Accounting Policies </link:label>
<link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967_label_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Significant Accounting Policies [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967" xlink:to="lab_us-gaap_SignificantAccountingPoliciesTextBlock_549193952B0D57FE75CECA4CB0847967" xlink:type="arc"/>
<link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09_terseLabel_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09_label_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label>
<link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09_documentation_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_A2012SecuredNotesTrancheBMember" xlink:label="loc_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:to="lab_gsv_A2012SecuredNotesTrancheBMember_2262E54483E8875BD475B519160A2E09" xlink:type="arc"/>
<link:label id="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593_terseLabel_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fixed Rate - High Yield Bonds, 7.75% Secured Notes [Member] </link:label>
<link:label id="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593_label_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fixed Rate High Yield Bonds 7 Point 75 Percent Secured Notes [Member] </link:label>
<link:label id="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593_documentation_en-US" xlink:label="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Fixed Rate - High Yield Bonds, 7.75% Secured Notes </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember" xlink:label="loc_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:to="lab_gsv_FixedRateHighYieldBonds7Point75PercentSecuredNotesMember_E49E10D61741E965F05EB5191610F593" xlink:type="arc"/>
<link:label id="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A_terseLabel_en-US" xlink:label="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2016 Senior Unsecured Notes issued by parent [Domain] </link:label>
<link:label id="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A_label_en-US" xlink:label="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> 2016 Senior Unsecured Notes [Domain] </link:label>
<link:label id="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A_documentation_en-US" xlink:label="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Aggregate principal amount of 2016 Senior Unsecured Notes [Domain] </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_A2016SeniorUnsecuredNotesDomain" xlink:label="loc_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:to="lab_gsv_A2016SeniorUnsecuredNotesDomain_CCA9C9572A4F62F39572B51916108F6A" xlink:type="arc"/>
<link:label id="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5_terseLabel_en-US" xlink:label="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Write-off of deferred financing costs and discounts </link:label>
<link:label id="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5_label_en-US" xlink:label="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Write-off of deferred financing costs and discounts </link:label>
<link:label id="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5_documentation_en-US" xlink:label="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Write-off of deferred financing costs and discounts. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_WriteOffOfDeferredFinancingCostsAndDiscounts" xlink:label="loc_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:to="lab_gsv_WriteOffOfDeferredFinancingCostsAndDiscounts_2A3CCE53FA892A690FDEB519161166C5" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_D3B90B36E03C0FD771A7B519161100AC_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_D3B90B36E03C0FD771A7B519161100AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total debt and other obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_D3B90B36E03C0FD771A7B519161100AC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_D3B90B36E03C0FD771A7B519161100AC" xlink:to="lab_us-gaap_DebtAndCapitalLeaseObligations_D3B90B36E03C0FD771A7B519161100AC" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Face value of debt </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Capital Lease Obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6A3237C0EB12AFE8F877B519161104FE" xlink:type="arc"/>
<link:label id="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB_terseLabel_en-US" xlink:label="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt covenant, trade payable restriction of equipment, land or other property, amount </link:label>
<link:label id="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB_label_en-US" xlink:label="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Covenant, Trade Payable Restriction Of Equipment, Land or Other Property, Amount </link:label>
<link:label id="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB_documentation_en-US" xlink:label="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Covenant, Trade Payable Restriction Of Equipment, Land or Other Property, Amount </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount" xlink:label="loc_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:to="lab_gsv_DebtCovenantTradePayableRestrictionOfEquipmentLandorOtherPropertyAmount_DECF8E02AA3469C7BE0CB519161131FB" xlink:type="arc"/>
<link:label id="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E_terseLabel_en-US" xlink:label="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt covenant, debt to adjusted consolidated cash flow </link:label>
<link:label id="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E_label_en-US" xlink:label="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Covenant, Debt to Adjusted Consolidated Cash Flow </link:label>
<link:label id="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E_documentation_en-US" xlink:label="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Covenant, Debt to Adjusted Consolidated Cash Flow </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow" xlink:label="loc_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:to="lab_gsv_DebtCovenantDebttoAdjustedConsolidatedCashFlow_497E835E40B79D2639ADB5191611714E" xlink:type="arc"/>
<link:label id="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582_terseLabel_en-US" xlink:label="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt to adjusted cash flow ratio </link:label>
<link:label id="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582_label_en-US" xlink:label="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt to Adjusted Cash Flow Ratio </link:label>
<link:label id="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582_documentation_en-US" xlink:label="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt to Adjusted Cash Flow Ratio </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DebttoAdjustedCashFlowRatio" xlink:label="loc_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:to="lab_gsv_DebttoAdjustedCashFlowRatio_076A498B979C1274F340B51916111582" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Face amount of debt instrument </link:label>
<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Face Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount_F772D19EAE17F313E9F0B5191611885C" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] </link:label>
<link:label id="lab_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A_label_en-US" xlink:label="lab_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:label="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A" xlink:to="lab_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_615E3C11D7DE0A724BB9CA4CB0EB8A1A" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D_terseLabel_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease, by Major Property Class [Table] </link:label>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D_label_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease, by Major Property Class [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D" xlink:to="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseByMajorPropertyClassTable_89793D366A47F97602C3B391015BD21D" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070_terseLabel_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Axis] </link:label>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070_label_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070" xlink:to="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis_6F30E77CBEF716A1B3FDB391015B8070" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04_terseLabel_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Domain] </link:label>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04_label_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04" xlink:to="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseDomain_83B781327F146B7F8D6DB391015B6A04" xlink:type="arc"/>
<link:label id="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89_terseLabel_en-US" xlink:label="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Greater than 10 Years, Inclusive of Renewals at the Company's Option [Member] </link:label>
<link:label id="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89_label_en-US" xlink:label="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Greater than 10 Years Inclusive of Renewals at the Company's Option [Member] </link:label>
<link:label id="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89_documentation_en-US" xlink:label="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Greater than 10 Years Inclusive of Renewals at Company's Option </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember" xlink:label="loc_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:to="lab_gsv_GreaterThan10YearsInclusiveOfRenewalsAtCompanysOptionMember_EE54BEF13BB4FC5A4E59B391015BBB89" xlink:type="arc"/>
<link:label id="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D_terseLabel_en-US" xlink:label="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Greater than 20 Years, Inclusive of Renewals at the Company's Option [Member] </link:label>
<link:label id="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D_label_en-US" xlink:label="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Greater than 20 Years Inclusive of Renewals at the Company's Option [Member] </link:label>
<link:label id="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D_documentation_en-US" xlink:label="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Greater than 20 Years, Inclusive of Renewals at the Company's Option </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember" xlink:label="loc_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:to="lab_gsv_GreaterThan20YearsInclusiveOfRenewalsAtCompanysOptionMember_EBD9CA566427AFD57AD3B391015B521D" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8_terseLabel_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Line Items] </link:label>
<link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8_label_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Subject to or Available for Operating Lease [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8" xlink:to="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems_4917E0188C2A982E957FB391015BEEE8" xlink:type="arc"/>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4_terseLabel_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted average remaining term of tenant leases </link:label>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4_label_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Remaining Term Of Tenant Leases at the Tenant's Option </link:label>
<link:label id="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4_documentation_en-US" xlink:label="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Weighted-average remaining term of tenant leases, exclusive of renewals at the tenant's option </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption" xlink:label="loc_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:to="lab_gsv_WeightedAverageRemainingTermOfTenantLeasesAtTenantsOption_320E7B7C9CA6DBA83D2AB391015BFCD4" xlink:type="arc"/>
<link:label id="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA_terseLabel_en-US" xlink:label="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum Current Term </link:label>
<link:label id="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA_label_en-US" xlink:label="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum Current Term </link:label>
<link:label id="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA_documentation_en-US" xlink:label="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Maximum current term of tenant contracts, excluding the exercise of tenant renewal options. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_MaximumCurrentTerm" xlink:label="loc_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:to="lab_gsv_MaximumCurrentTerm_BD86C535524DDF354EA5B391015BBBEA" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases 2018 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_4520C00B044EA8E722B1B391015B7130" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases 2019 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Two Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_3A14B168F4569AB5FEDCB391015BA4FF" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases 2020 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Three Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D16983EADACD1DE31868B391015B2D3A" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases 2021 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Four Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_033F2A7408AFA493767DB391015BCDB3" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases 2022 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Five Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_C0B74EB879623A8551DAB3910161B003" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tenant Leases thereafter </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, Thereafter </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_BB1622D0B6C4AF1C6DEBB3910161AD4D" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total tenant leases </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_F9CE86682DEF765B666EB391016195AC" xlink:type="arc"/>
<link:label id="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382_terseLabel_en-US" xlink:label="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percentage of wireless infrastructure, office space and equipment that is on land that has non-cancelable operating leases </link:label>
<link:label id="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382_label_en-US" xlink:label="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Percentage of towers that is on land that has non-cancelable operating leases </link:label>
<link:label id="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382_documentation_en-US" xlink:label="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The percentage of towers, office space and equipment that is on land that has non-cancelable operating leases. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases" xlink:label="loc_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:to="lab_gsv_Percentageoftowersthatisonlandthathasnoncancelableoperatingleases_B5661EDBBAD5901100D7B39101613382" xlink:type="arc"/>
<link:label id="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0_terseLabel_en-US" xlink:label="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Percentage of site rental gross margin that is derived from wireless infrastructure where the lease for the land has a final expiration date </link:label>
<link:label id="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0_label_en-US" xlink:label="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Percentage of site rental gross margin that is derived from towers where the lease for the land has a final expiration date </link:label>
<link:label id="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0_documentation_en-US" xlink:label="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Percentage of site rental gross margin that is derived from towers where the lease for the land has a final expiration date. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate" xlink:label="loc_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:to="lab_gsv_PercentageOfSiteRentalGrossMarginThatIsDerivedFromTowersWhereLeaseForLandHasFinalExpirationDate_D95503D05B2A5B804BB6B391016192F0" xlink:type="arc"/>
<link:label id="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E_terseLabel_en-US" xlink:label="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases, owned land under tower, expiration term </link:label>
<link:label id="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E_label_en-US" xlink:label="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum Lease Term, Years </link:label>
<link:label id="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E_documentation_en-US" xlink:label="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Maximum current lease expiration term, in years, of operating leases for tower under which the company owns land. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_MaximumLeaseTermYears" xlink:label="loc_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:to="lab_gsv_MaximumLeaseTermYears_F2A90884659B2FC3356EB3910161598E" xlink:type="arc"/>
<link:label id="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2_terseLabel_en-US" xlink:label="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases, leased land under tower, expiration term </link:label>
<link:label id="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2_label_en-US" xlink:label="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Leased Land Under Tower, Expiration Term </link:label>
<link:label id="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2_documentation_en-US" xlink:label="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Operating Leases, Leased Land Under Tower, Expiration Term </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm" xlink:label="loc_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:to="lab_gsv_OperatingLeasesLeasedLandUnderTowerExpirationTerm_18E434E8AD29170D7AC5B3910161E9A2" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_77AF994169DDA7B78AA5B39101616086_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_77AF994169DDA7B78AA5B39101616086" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated useful life, maximum, in years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_77AF994169DDA7B78AA5B39101616086" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_77AF994169DDA7B78AA5B39101616086" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_77AF994169DDA7B78AA5B39101616086" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases 2018 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Next Twelve Months </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_5BD25715C2DFD200CCA5B39101613E05" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases 2019 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Two Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F56623ADA6133E7B6F5DB3910161EF6F" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases 2020 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Three Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_63C89A9284584A72AA48B3910161F4AA" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases 2021 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Four Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_A41E6AE98F903730D8A9B3910161C76B" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases 2022 </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Five Years </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_EF0515F91B417CACAEEDB3910161EE2B" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases thereafter </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due Thereafter </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_62F9512F07A9DFF77F3FB3910161B502" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_4037BF9F205D01A9A229B39101610557" xlink:type="arc"/>
<link:label id="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75_terseLabel_en-US" xlink:label="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rental expense from operating leases </link:label>
<link:label id="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75_label_en-US" xlink:label="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease And Rental Expense </link:label>
<link:label id="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75_documentation_en-US" xlink:label="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Rental expense incurred for leased assets. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_OperatingLeaseAndRentalExpense" xlink:label="loc_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:to="lab_gsv_OperatingLeaseAndRentalExpense_608F6ACD4D03998878E9B3910161AD75" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent rental payments </link:label>
<link:label id="lab_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Rent Expense, Contingent Rentals </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesRentExpenseContingentRentals" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2" xlink:to="lab_us-gaap_OperatingLeasesRentExpenseContingentRentals_CDD18582A691872152BFB3910161F3F2" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Benefit (provision) for income taxes at statutory rate </link:label>
<link:label id="lab_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271" xlink:to="lab_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_95407F77EA6CD126856C8BA8994F6271" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Nondeductible expenses and other </link:label>
<link:label id="lab_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660" xlink:to="lab_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_4F3DBBA3C2D978843FD68BA8994FC660" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> State tax benefit (provision), net of federal </link:label>
<link:label id="lab_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE" xlink:to="lab_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_9044CB9EF0E95B504F598BA8994F3DCE" xlink:type="arc"/>
<link:label id="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81_terseLabel_en-US" xlink:label="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Tax adjustment related to REIT conversion </link:label>
<link:label id="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81_label_en-US" xlink:label="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Adjustment Related to REIT Conversion1 </link:label>
<link:label id="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81_documentation_en-US" xlink:label="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Total tax adjustment to the consolidated statement of operations related to the Company’s assets and operations being included in CCIC’s REIT for U.S. federal income tax purposes. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_TaxAdjustmentRelatedtoREITConversion1" xlink:label="loc_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:to="lab_gsv_TaxAdjustmentRelatedtoREITConversion1_1CDCAB0F8F40507DA6188BA8994F1D81" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Other Adjustments, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA" xlink:to="lab_us-gaap_IncomeTaxReconciliationOtherAdjustments_F60D020EBDCD359F64018BA8994FE0CA" xlink:type="arc"/>
<link:label id="lab_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF_terseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Intangible Assets and Above-market Leases </link:label>
<link:label id="lab_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Intangible Assets Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF" xlink:to="lab_us-gaap_IntangibleAssetsDisclosureTextBlock_F65202CF0D47B06CE200CA4CB1C09DBF" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Intangible assets </link:label>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Liabilities, Intangible Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_8C2A5B3B5214232046BACA4CB12021B8" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment </link:label>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Liabilities, Property, Plant and Equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06D4CE7C4213540CD52ACA4CB120457B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred site rental receivables </link:label>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Liabilities, Leasing Arrangements </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesLeasingArrangements" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_C2312724578AA51A7D1BCA4CB1207A64" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total deferred income tax liabilities </link:label>
<link:label id="lab_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Liabilities, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E" xlink:to="lab_us-gaap_DeferredTaxLiabilities_89FDB3CAF46A68564611CA4CB120166E" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net operating loss carryforwards </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Operating Loss Carryforwards </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798" xlink:to="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_707AF9CCBFB44C22F4BCCA4CB1206798" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred ground lease payable </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent_FEAC3713B1A35FBAC208CA4CB1207530" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued liabilities </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_A5EDDE2B56E04A632CCCCA4CB1206DE5" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables allowance </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_B0E4B01D8A2E79498DA9CA4CB1204166" xlink:type="arc"/>
<link:label id="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D_terseLabel_en-US" xlink:label="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid lease </link:label>
<link:label id="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D_label_en-US" xlink:label="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets Prepaid Leases </link:label>
<link:label id="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D_documentation_en-US" xlink:label="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The effect as of the balance sheet date of the amount of the estimated future tax deductions arising from currently nondeductible expenses in prepaid leases. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DeferredTaxAssetsPrepaidLeases" xlink:label="loc_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:to="lab_gsv_DeferredTaxAssetsPrepaidLeases_746FF756CFD3F858B9C9CA4CB120FE1D" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total deferred income tax assets, net </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Net of Valuation Allowance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E" xlink:to="lab_us-gaap_DeferredTaxAssetsNet_1104EBCEABA5654DD6FFCA4CB120067E" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net deferred income tax asset (liabilities) </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173" xlink:to="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_AFD1B6C293F91DB5B192CA4CB1214173" xlink:type="arc"/>
<link:label id="lab_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877_terseLabel_en-US" xlink:label="lab_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] </link:label>
<link:label id="lab_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877_label_en-US" xlink:label="lab_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward" xlink:label="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877" xlink:to="lab_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_0FEE49BB75BCDFBB258ACA4CB09DB877" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label>
<link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_1663F48177097D216D975789E4647E79" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> ASSETS </link:label>
<link:label id="lab_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0" xlink:to="lab_us-gaap_AssetsAbstract_4C7D3FB7B2834F2AE9F15789E464E5E0" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_4AC488EC69B93D139B925789E46917FC_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_4AC488EC69B93D139B925789E46917FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4AC488EC69B93D139B925789E46917FC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4AC488EC69B93D139B925789E46917FC" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_4AC488EC69B93D139B925789E46917FC" xlink:type="arc"/>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Cash Equivalents, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_D8DA0A5CAF20DF5710035789E469E6F4" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables, net of allowance of $1,300 and $1,810, respectively </link:label>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, Net, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent_57846164066C739239975789E4693398" xlink:type="arc"/>
<link:label id="lab_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid expenses </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20" xlink:to="lab_us-gaap_PrepaidExpenseCurrent_FF653921DE1ABF5C67E45789E4694C20" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income tax assets </link:label>
<link:label id="lab_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Assets, Net of Valuation Allowance, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44" xlink:to="lab_us-gaap_DeferredTaxAssetsNetCurrent_75FD71DE5ABB1AA6B9675789E469ED44" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred site rental receivables, current </link:label>
<link:label id="lab_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497_label_en-US" xlink:label="lab_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Rent Asset, Net, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRentAssetNetCurrent" xlink:label="loc_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497" xlink:to="lab_us-gaap_DeferredRentAssetNetCurrent_657511DA74D59257D5F75789E46A1497" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other current assets </link:label>
<link:label id="lab_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974" xlink:to="lab_us-gaap_OtherAssetsCurrent_6EADE4C952C11FC5B8E85789E46AB974" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current assets </link:label>
<link:label id="lab_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6" xlink:to="lab_us-gaap_AssetsCurrent_3439AAC9435948E0C7945789E46A3AB6" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred site rental receivables </link:label>
<link:label id="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91_label_en-US" xlink:label="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Rent Receivables, Net, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRentReceivablesNetNoncurrent" xlink:label="loc_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91" xlink:to="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_EA756379F22BF8E5AD875789E46ADF91" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_E352E0DDAB8B428989305789E46ADAAD_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_E352E0DDAB8B428989305789E46ADAAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_E352E0DDAB8B428989305789E46ADAAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_E352E0DDAB8B428989305789E46ADAAD" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_E352E0DDAB8B428989305789E46ADAAD" xlink:type="arc"/>
<link:label id="lab_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:label id="lab_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD_label_en-US" xlink:label="lab_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD" xlink:to="lab_us-gaap_Goodwill_3B9A62AF365E7415325E5789E46ADFCD" xlink:type="arc"/>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1_terseLabel_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental contracts and customer relationships, net </link:label>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1_label_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Site Rental Contracts And Customer Relationships Net </link:label>
<link:label id="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1_documentation_en-US" xlink:label="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sum of the carrying amounts of the intangible assets that arise from site rental contracts and customer relationships, as of the balance sheet date, net of accumulated amortization. </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_SiteRentalContractsAndCustomerRelationshipsNet" xlink:label="loc_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:to="lab_gsv_SiteRentalContractsAndCustomerRelationshipsNet_1307F2FEC9EB72752B395789E46AA7A1" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherIntangibleAssetsNet_1958F543B7A2C55048285789E46A293C_terseLabel_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsNet_1958F543B7A2C55048285789E46A293C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other intangible assets, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIntangibleAssetsNet" xlink:label="loc_us-gaap_OtherIntangibleAssetsNet_1958F543B7A2C55048285789E46A293C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIntangibleAssetsNet_1958F543B7A2C55048285789E46A293C" xlink:to="lab_us-gaap_OtherIntangibleAssetsNet_1958F543B7A2C55048285789E46A293C" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term prepaid rent and other assets, net </link:label>
<link:label id="lab_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07" xlink:to="lab_us-gaap_OtherAssetsNoncurrent_604DC65C5EB92E3B0DA45789E46A4E07" xlink:type="arc"/>
<link:label id="lab_us-gaap_Assets_649889DA10E54758234C5789E46ABB59_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_649889DA10E54758234C5789E46ABB59" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total Assets </link:label>
<link:label id="lab_us-gaap_Assets_649889DA10E54758234C5789E46ABB59_label_en-US" xlink:label="lab_us-gaap_Assets_649889DA10E54758234C5789E46ABB59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_649889DA10E54758234C5789E46ABB59" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_649889DA10E54758234C5789E46ABB59" xlink:to="lab_us-gaap_Assets_649889DA10E54758234C5789E46ABB59" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> LIABILITIES AND EQUITY </link:label>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_872A0DB9BA426500C2D85789E46AB99E" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable </link:label>
<link:label id="lab_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E" xlink:to="lab_us-gaap_AccountsPayableCurrent_0558A35E1FCAA0F4F5AA5789E46ACF8E" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued income taxes </link:label>
<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07_label_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Income Taxes, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07" xlink:to="lab_us-gaap_AccruedIncomeTaxesCurrent_516CAAFDB9D9243D3FCB5789E46A3F07" xlink:type="arc"/>
<link:label id="lab_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued interest </link:label>
<link:label id="lab_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A" xlink:to="lab_us-gaap_InterestPayableCurrent_E7331D91BA8C5C0CAD725789E46A841A" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred revenues </link:label>
<link:label id="lab_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE_label_en-US" xlink:label="lab_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Revenue, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE" xlink:to="lab_us-gaap_DeferredRevenueCurrent_8E6009A6DAA4BFEBF0FE5789E46A64EE" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other accrued liabilities </link:label>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent_7ABD8580AAD8947C5B2D5789E46B8396" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtCurrent_39BA64C5B032E86455FD5789E46B9FAC_terseLabel_en-US" xlink:label="lab_us-gaap_DebtCurrent_39BA64C5B032E86455FD5789E46B9FAC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current maturities of debt and other obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtCurrent" xlink:label="loc_us-gaap_DebtCurrent_39BA64C5B032E86455FD5789E46B9FAC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtCurrent_39BA64C5B032E86455FD5789E46B9FAC" xlink:to="lab_us-gaap_DebtCurrent_39BA64C5B032E86455FD5789E46B9FAC" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current liabilities </link:label>
<link:label id="lab_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190" xlink:to="lab_us-gaap_LiabilitiesCurrent_8E021FD83027EE8ED1005789E46B7190" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4D47D7745D8CB42B03815789E46B13D1_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4D47D7745D8CB42B03815789E46B13D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_4D47D7745D8CB42B03815789E46B13D1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_4D47D7745D8CB42B03815789E46B13D1" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4D47D7745D8CB42B03815789E46B13D1" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income tax liabilities </link:label>
<link:label id="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Tax Liabilities, Net, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_C5276F2EE87DDA70ACDF5789E46B9B85" xlink:type="arc"/>
<link:label id="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3_terseLabel_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred ground lease payable </link:label>
<link:label id="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3_label_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Ground Lease Payable </link:label>
<link:label id="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3_documentation_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Deferred Ground Lease Payable </link:label>
<link:loc xlink:href="gsv-20171231.xsd#gsv_DeferredGroundLeasePayable" xlink:label="loc_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:to="lab_gsv_DeferredGroundLeasePayable_BBC76FD7E7B9110C0DCE5789E46B0EB3" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Above-market leases and other liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent_3C9C79F31ED45F33EBD15789E46B4F97" xlink:type="arc"/>
<link:label id="lab_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities </link:label>
<link:label id="lab_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D_label_en-US" xlink:label="lab_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D" xlink:to="lab_us-gaap_Liabilities_C015A35F2127B2E8BC975789E46B411D" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and contingencies (note 9) </link:label>
<link:label id="lab_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD" xlink:to="lab_us-gaap_CommitmentsAndContingencies_B9096B56850558CE618F5789E46BDDAD" xlink:type="arc"/>
<link:label id="lab_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Member's equity: </link:label>
<link:label id="lab_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509" xlink:to="lab_us-gaap_StockholdersEquityAbstract_19535CAB7CF86AB00DA95789E46B8509" xlink:type="arc"/>
<link:label id="lab_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8_terseLabel_en-US" xlink:label="lab_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Member's equity </link:label>
<link:label id="lab_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8_label_en-US" xlink:label="lab_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Capital </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MembersCapital" xlink:label="loc_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8" xlink:to="lab_us-gaap_MembersCapital_E3D4DABE2605EFC4E2E35789E46BA8C8" xlink:type="arc"/>
<link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated earnings (deficit) </link:label>
<link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings (Accumulated Deficit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit_C4D843F49F95FAD779545789E46BE926" xlink:type="arc"/>
<link:label id="lab_us-gaap_MembersEquity_E8D4427B61C637DB5A3B5789E46B0F6C_totalLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_E8D4427B61C637DB5A3B5789E46B0F6C" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total member's equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_E8D4427B61C637DB5A3B5789E46B0F6C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersEquity_E8D4427B61C637DB5A3B5789E46B0F6C" xlink:to="lab_us-gaap_MembersEquity_E8D4427B61C637DB5A3B5789E46B0F6C" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities and equity </link:label>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_F6DAE3FD772BBAA7AF355789E46B3DD9" xlink:type="arc"/>
</link:labelLink>
</link:linkbase>

↑Top
Filing Submission 0001574291-18-000006   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Mon., May 6, 7:57:17.1pm ET