Question: When did Richard Wright (the one that is a member of Manchester City F.C.) become a member of Arsenal F.C.?
Choices: 1988-09-18
1797-10-12
1861-03-13
1903
2000-10-26
2012-04-01
1878-07-13
1994-04-06
2001-01-01
2016-06-16
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Richard Wright" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "Manchester City F.C." . ?e_2 <pred:name> "Arsenal 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: Manchester City F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: Richard Wright
function: And
dependencies: 1
2
function: Find
inputs: Arsenal F.C.
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 2001-01-01