Question: What is the start date that Paul Williams (who is a member of Sunderland A.F.C.) becomes a member of Birmingham City F.C.?
Choices:
2017-05-04
1986-04-30
1967-09-10
1995-01-01
1814-05-30
1947
2005-06-14
1985-01-26
1993-09-16
2012-02-17
Answer: 1995-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Paul Williams" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "Sunderland A.F.C." . ?e_2 <pred:name> "Birmingham City 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: Sunderland A.F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: Paul Williams
function: And
dependencies: 1
2
function: Find
inputs: Birmingham City F.C.
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time