Question: Was William Baldwin (the one that has the occupation of actor) not born in 1979?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "William Baldwin" . ?e <occupation> ?e_1 . ?e_1 <pred:name> "actor" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1979 ) .  }
Program:
function: Find
inputs: actor
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: William Baldwin
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1979
!=