Question: Pharrell Williams produced which single?
Choices:
Stand by Me
Venus
Hello, Dolly!
Hollywood
Marilyn Monroe
Monster
A View to a Kill
Fame
Boys Don't Cry
Longview
Answer: Marilyn Monroe
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "single" . ?e <producer> ?e_1 . ?e_1 <pred:name> "Pharrell Williams" .   }
Program:
function: Find
inputs: Pharrell Williams
function: Relate
dependencies: 0
inputs: producer
backward
function: FilterConcept
dependencies: 1
inputs: single
function: What
dependencies: 2