Question: When did Andy Williams (the one whose date of birth is 1977-09-23) become a member of Columbus Crew SC?
Choices: 1976-09-13
2003-05-24
1991-10-03
1999-10-14
1962-09-18
2006-11-28
1981-01-20
1998-01-01
1992-05-22
1996-07-31
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Andy Williams" . ?e_1 <date_of_birth> ?pv . ?pv <pred:date> "1977-09-23"^^xsd:date . ?e_2 <pred:name> "Columbus Crew SC" . ?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: Andy Williams
function: FilterDate
dependencies: 0
inputs: date of birth
1977-09-23
=
function: Find
inputs: Columbus Crew SC
function: QueryRelationQualifier
dependencies: 1
2
inputs: member of sports team
start time
Answer: 1998-01-01