Question: Which mechanical wave includes Camel in famous people?
Choices:
space rock
progressive rock
post-grunge
neo-progressive rock
mathcore
vocal jazz
hard bop
grunge
Christian hip hop
college rock
Answer: space rock
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "mechanical wave" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Camel" .   }
Program:
function: Find
inputs: Camel
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: mechanical wave
function: What
dependencies: 2