Question: Was David Brown of Nottingham Forest F.C. born on 1945-11-21?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:name> "David Brown" . ?e <member_of_sports_team> ?e_1 . ?e_1 <pred:name> "Nottingham Forest F.C." .  ?e <date_of_birth> ?pv . ?pv <pred:date> "1945-11-21"^^xsd:date .  }
Program:
function: Find
inputs: Nottingham Forest F.C.
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: David Brown
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyDate
dependencies: 4
inputs: 1945-11-21
=