Question: what is the music that has well-known people Nirvana?
Choices: breakbeat
jazz rap
noise pop
dance-pop
college rock
hardcore punk
rock music
funk rock
grunge
alternative rock
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "music" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Nirvana" .   }
Program:
function: Find
inputs: Nirvana
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: music
function: What
dependencies: 2
Answer: grunge