Question: Was Chariots of Fire produced by Vangelis published before 1999?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Chariots of Fire" . ?e <producer> ?e_1 . ?e_1 <pred:name> "Vangelis" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1999 ) .  }
Program:
function: Find
inputs: Vangelis
function: Relate
dependencies: 0
inputs: producer
backward
function: Find
inputs: Chariots of Fire
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
function: VerifyYear
dependencies: 4
inputs: 1999
<
Answer: yes