Question: Which person's genre is space rock?
Choices:
John Williams
Illeana Douglas
Muse
Camel
Hawkwind
Mary Shelley
Danger Mouse
David Watkin
Syd Barrett
Ralph Stanley
Program:
function: Find
inputs: space rock
function: Relate
dependencies: 0
inputs: genre
backward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <genre> ?e_1 . ?e_1 <pred:name> "space rock" .   }
Answer: Syd Barrett