Question: Since when was Elton John (the one that was born in Trinidad and Tobago) the member of Trinidad and Tobago national football team ?
Choices: 1980-09-27
1426-01-01
1990-07-12
1815-06-09
2007-03-02
2013
2009-09-10
2013-04-22
2012-01-01
1857-03-04
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Elton John" . ?e_1 <place_of_birth> ?e_3 . ?e_3 <pred:name> "Trinidad and Tobago" . ?e_2 <pred:name> "Trinidad and Tobago 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: Trinidad and Tobago
function: Relate
dependencies: 0
inputs: place of birth
backward
function: Find
inputs: Elton John
function: And
dependencies: 1
2
function: Find
inputs: Trinidad and Tobago national football team
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 2012-01-01