Question: Does Battlestar Galactica (the one that origins from Canada), have a start time before 1946?
Choices: yes
no
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SPARQL: ASK { ?e <pred:name> "Battlestar Galactica" . ?e <country_of_origin> ?e_1 . ?e_1 <pred:name> "Canada" .  ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1946 ) .  }
Program:
function: Find
inputs: Canada
function: Relate
dependencies: 0
inputs: country of origin
backward
function: Find
inputs: Battlestar Galactica
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: start time
function: VerifyYear
dependencies: 4
inputs: 1946
<
Answer: no