Question: When did Peter Weir (the one that is a member of Leicester City F.C.) become a member of Aberdeen F.C.?
Choices: 1800-02-17
1961-09-28
1871-05-07
1861-03-16
1988-09-17
1982-05-30
1981-01-01
1801-12-18
2017-04-01
1965-02-18
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Peter Weir" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "Leicester City F.C." . ?e_2 <pred:name> "Aberdeen F.C." . ?e_1 <member_of_sports_team> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Leicester City F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: Peter Weir
function: And
dependencies: 1
2
function: Find
inputs: Aberdeen F.C.
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 1981-01-01