Question: What is the date of birth for Ashlee Simpson's spouse?
Choices:
1970-01-26
1963-08-02
1974-03-07
1979-06-05
1958-07-08
1961-01-13
1882-01-25
1748-06-22
1925-11-11
1923-11-06
Answer: 1979-06-05
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <spouse> ?e_1 . ?e_1 <pred:name> "Ashlee Simpson" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Ashlee Simpson
function: Relate
dependencies: 0
inputs: spouse
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth