{"pre_text": ["part i item 1 entergy corporation , utility operating companies , and system energy entergy wholesale commodities during 2010 entergy integrated its non-utility nuclear and its non-nuclear wholesale assets businesses into a new organization called entergy wholesale commodities .", "entergy wholesale commodities includes the ownership and operation of six nuclear power plants , five of which are located in the northeast united states , with the sixth located in michigan , and is primarily focused on selling electric power produced by those plants to wholesale customers .", "entergy wholesale commodities 2019 revenues are primarily derived from sales of energy and generation capacity from these plants .", "entergy wholesale commodities also provides operations and management services , including decommissioning services , to nuclear power plants owned by other utilities in the united states .", "entergy wholesale commodities also includes the ownership of , or participation in joint ventures that own , non-nuclear power plants and the sale to wholesale customers of the electric power produced by these plants .", "property nuclear generating stations entergy wholesale commodities includes the ownership of the following nuclear power plants : power plant market service acquired location capacity- reactor type license expiration ."], "post_text": ["entergy wholesale commodities also includes the ownership of two non-operating nuclear facilities , big rock point in michigan and indian point 1 in new york that were acquired when entergy purchased the palisades and indian point 2 nuclear plants , respectively .", "these facilities are in various stages of the decommissioning process .", "the nrc operating license for vermont yankee was to expire in march 2012 .", "in march 2011 the nrc renewed vermont yankee 2019s operating license for an additional 20 years , as a result of which the license now expires in 2032 .", "for additional discussion regarding the continued operation of the vermont yankee plant , see 201cimpairment of long-lived assets 201d in note 1 to the financial statements .", "the operating licenses for pilgrim , indian point 2 , and indian point 3 expire between 2012 and 2015 .", "under federal law , nuclear power plants may continue to operate beyond their license expiration dates while their renewal applications are pending nrc approval .", "various parties have expressed opposition to renewal of the licenses .", "with respect to the pilgrim license renewal , the atomic safety and licensing board ( aslb ) of the nrc , after issuing an order denying a new hearing request , terminated its proceeding on pilgrim 2019s license renewal application .", "with the aslb process concluded the proceeding , including appeals of certain aslb decisions , is now before the nrc .", "in april 2007 , entergy submitted an application to the nrc to renew the operating licenses for indian point 2 and 3 for an additional 20 years .", "the aslb has admitted 21 contentions raised by the state of new york or other parties , which were combined into 16 discrete issues .", "two of the issues have been resolved , leaving 14 issues that are currently subject to aslb hearings .", "in july 2011 , the aslb granted the state of new york 2019s motion for summary disposition of an admitted contention challenging the adequacy of a section of indian point 2019s environmental analysis as incorporated in the fseis ( discussed below ) .", "that section provided cost estimates for severe accident mitigation alternatives ( samas ) , which are hardware and procedural changes that could be ."], "table": [["power plant", "market", "inserviceyear", "acquired", "location", "capacity-reactor type", "licenseexpirationdate"], ["pilgrim", "is0-ne", "1972", "july 1999", "plymouth ma", "688 mw - boiling water", "2012"], ["fitzpatrick", "nyiso", "1975", "nov . 2000", "oswego ny", "838 mw - boiling water", "2034"], ["indian point 3", "nyiso", "1976", "nov . 2000", "buchanan ny", "1041 mw - pressurized water", "2015"], ["indian point 2", "nyiso", "1974", "sept . 2001", "buchanan ny", "1028 mw - pressurized water", "2013"], ["vermont yankee", "is0-ne", "1972", "july 2002", "vernon vt", "605 mw - boiling water", "2032"], ["palisades", "miso", "1971", "apr . 2007", "south haven mi", "811 mw - pressurized water", "2031"]], "table_ori": [["Power Plant", "Market", "InServiceYear", "Acquired", "Location", "Capacity-Reactor Type", "LicenseExpirationDate"], ["Pilgrim", "IS0-NE", "1972", "July 1999", "Plymouth, MA", "688 MW - Boiling Water", "2012"], ["FitzPatrick", "NYISO", "1975", "Nov. 2000", "Oswego, NY", "838 MW - Boiling Water", "2034"], ["Indian Point 3", "NYISO", "1976", "Nov. 2000", "Buchanan, NY", "1,041 MW - Pressurized Water", "2015"], ["Indian Point 2", "NYISO", "1974", "Sept. 2001", "Buchanan, NY", "1,028 MW - Pressurized Water", "2013"], ["Vermont Yankee", "IS0-NE", "1972", "July 2002", "Vernon, VT", "605 MW - Boiling Water", "2032"], ["Palisades", "MISO", "1971", "Apr. 2007", "South Haven, MI", "811 MW - Pressurized Water", "2031"]]}

Question: what is the length of the lease for pilgrim , ( in years ) ?
Evidence:
table_1: power plant the pilgrim of market is is0-ne ; the pilgrim of inserviceyear is 1972 ; the pilgrim of acquired is july 1999 ; the pilgrim of location is plymouth ma ; the pilgrim of capacity-reactor type is 688 mw - boiling water ; the pilgrim of licenseexpirationdate is 2012 ;
Program: subtract(2012, 1999)
Answer:
str_answer: 13
exe_answer: 13