Question: Did South Park, featuring the voice of George Clooney, debut prior to 2002 ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "South Park" . ?e <voice_actor> ?e_1 . ?e_1 <pred:name> "George Clooney" .  ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2002 ) .  }
Program:
function: Find
inputs: George Clooney
function: Relate
dependencies: 0
inputs: voice actor
backward
function: Find
inputs: South Park
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: start time
function: VerifyYear
dependencies: 4
inputs: 2002
<
Answer: yes