Question: Which person's Twitter username is blumspew?
Choices: Richard Gere
Steve Blum
Bruce Sterling
Sylvester Stallone
William Henry Harrison
Tupac Shakur
Max Fleischer
Adam Carolla
Louis C.K.
L.A. Reid
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <Twitter_username> ?pv . ?pv <pred:value> "blumspew" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Twitter username
blumspew
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: Steve Blum