Question: When did  Gerry Conway (the one that has the record label Island Records) become a member of Jethro Tull?
Choices: 1843-03-04
2011-02-15
2011-11-25
1943-08-01
2013-08-01
1922-01-01
1982
1983-11-17
2012-01-08
1821-06-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Gerry Conway" . ?e_1 <record_label> ?e_3 . ?e_3 <pred:name> "Island Records" . ?e_2 <pred:name> "Jethro Tull" . ?e_1 <member_of> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <member_of> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Island Records
function: Relate
dependencies: 0
inputs: record label
backward
function: Find
inputs: Gerry Conway
function: And
dependencies: 1
2
function: Find
inputs: Jethro Tull
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of
start time
Answer: 1982