Question: Was Robbie Williams (the one that was born in Pontefract) born after 1977?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Robbie Williams" . ?e <place_of_birth> ?e_1 . ?e_1 <pred:name> "Pontefract" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1977 ) .  }
Program:
function: Find
inputs: Pontefract
function: Relate
dependencies: 0
inputs: place of birth
backward
function: Find
inputs: Robbie Williams
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1977
>