Question: Since when was Bob Roberts the member of Wales national football team ?
Choices: 1995-01-04
1991-08-28
2018-10-14
1980-01-01
1573
1886-01-01
1946-01-01
1878-07-13
1834-01-01
1963-05-25
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Bob Roberts" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "Wales national football team" . ?e_2 <pred:name> "Wales national football team" . ?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: Wales national football team
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: Bob Roberts
function: And
dependencies: 1
2
function: Find
inputs: Wales national football team
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 1886-01-01