Question: Was American-style football sportsman Joe Roth born in a year other than 1974 ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Joe Roth" . ?e <sport> ?e_1 . ?e_1 <pred:name> "American football" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1974 ) .  }
Program:
function: Find
inputs: American football
function: Relate
dependencies: 0
inputs: sport
backward
function: Find
inputs: Joe Roth
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1974
!=