Question: What is the birth date of Mary Pickford's spouse?
Choices: 1938-07-08
1963-06-25
1890-12-05
1974-10-06
1952-04-25
1883-05-23
1987-04-09
1885-01-30
1919-01-15
1917-11-05
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <spouse> ?e . ?e_1 <pred:name> "Mary Pickford" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Mary Pickford
function: Relate
dependencies: 0
inputs: spouse
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth
Answer: 1883-05-23