Question: When is the birthdate of the individual who joined Rotherham United F.C. in 1951?
Choices: 1937-04-20
1965-02-03
1953-10-23
1947-06-01
1947-07-30
1977-11-16
1987-03-20
1929-01-26
1991-12-21
1918-08-25
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> "Rotherham United F.C." .  [ <pred:fact_h> ?e ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:year> 1951 . ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Rotherham United F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: QFilterYear
dependencies: 1
inputs: start time
1951
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: date of birth
Answer: 1929-01-26