Question: What is the date of birth for someone that lives in Calgary?
Choices:
1941-01-08
1933-09-27
1933-06-08
1942-04-02
1959-04-30
1948-06-22
1908-09-04
1970-10-08
1934-08-16
1969-04-02
Answer: 1959-04-30
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <residence> ?e_1 . ?e_1 <pred:name> "Calgary" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Calgary
function: Relate
dependencies: 0
inputs: residence
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth