Question: When did Mark Robson (the one that is a member of Reading F.C.) become a member of Reading F.C.,?
Choices: 2012-12-17
1988-11-04
1861-02-08
1973-09-08
1923
2009-09-27
1847-03-04
1993-09-17
1988-01-01
2013-06-12
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Mark Robson" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "Reading F.C." . ?e_2 <pred:name> "Reading 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: Reading F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: Mark Robson
function: And
dependencies: 1
2
function: Find
inputs: Reading F.C.
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 1988-01-01