Question: What is the date of birth of the person who is a member of Watford F.C., starting on the date 1958-01-01?
Choices:
1929-01-29
1896-01-20
1942-11-20
1934-05-13
1925-02-03
1983-10-26
1972-06-06
1902-08-14
1765-02-17
1963-08-30
Answer: 1934-05-13
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <member_of_sports_team> ?e_1 . ?e_1 <pred:name> "Watford F.C." .  [ <pred:fact_h> ?e ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:date> "1958-01-01"^^xsd:date . ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Watford F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: QFilterDate
dependencies: 1
inputs: start time
1958-01-01
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: date of birth