Question: What is the date of birth of the guitarist Chris Carter?
Choices:
1949-08-08
1981-06-02
1979-10-20
1939-04-09
1965-01-01
1958-06-07
1908-02-22
1959-07-29
1944-03-23
1973-07-15
Answer: 1965-01-01
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Chris Carter" . ?e <occupation> ?e_1 . ?e_1 <pred:name> "guitarist" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: guitarist
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: Chris Carter
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth