Question: When was the midfielder Liam O'Brien born?
Choices:
1964-09-05
1694-11-21
1889-07-05
1924-08-31
1944-05-15
1926-07-21
1899-11-17
1957-02-16
1704-08-26
1975-01-03
Answer: 1964-09-05
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Liam O'Brien" . ?e <position_played_on_team_/_speciality> ?e_1 . ?e_1 <pred:name> "midfielder" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: midfielder
function: Relate
dependencies: 0
inputs: position played on team / speciality
backward
function: Find
inputs: Liam O'Brien
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth