Question: Did Kenny Rogers (the one that is famous for pop music) start working before 1908?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: pop music
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Kenny Rogers
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: work period (start)
function: VerifyYear
dependencies: 4
inputs: 1908
<
SPARQL: ASK { ?e <pred:name> "Kenny Rogers" . ?e_1 <famous_people> ?e . ?e_1 <pred:name> "pop music" .  ?e <work_period_(start)> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1908 ) .  }
Answer: no