Question: Who is a person that plays the clarinet and is famous for cello ?
Choices: Tony Scott
Matthew Bellamy
Bobby McFerrin
Roy Wood
Charles Mingus Jr.
Mstislav Rostropovich
Yo-Yo Ma
John Coltrane
A. R. Rahman
Nick Jonas
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <famous_people> ?e . ?e_1 <pred:name> "cello" .  ?e <instrument> ?e_2 . ?e_2 <pred:name> "clarinet" .  }
Program:
function: Find
inputs: cello
function: Relate
dependencies: 0
inputs: famous people
forward
function: FilterConcept
dependencies: 1
inputs: human
function: Find
inputs: clarinet
function: Relate
dependencies: 3
inputs: instrument
backward
function: FilterConcept
dependencies: 4
inputs: human
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: Roy Wood