Question: What is the birth date of Billy West, who died 1975-07-21?
Choices:
1978-06-11
1920-10-22
1971-04-30
1979-03-18
1982-09-04
1932-02-22
1956-05-24
1964-11-24
1892-09-22
1667-11-30
Answer: 1892-09-22
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Billy West" . ?e <date_of_death> ?pv_1 . ?pv_1 <pred:date> "1975-07-21"^^xsd:date . ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Billy West
function: FilterDate
dependencies: 0
inputs: date of death
1975-07-21
=
function: QueryAttr
dependencies: 1
inputs: date of birth