Question: Which band's Instagram username is foofighters?
Choices: ZZ Top
Simple Minds
Foo Fighters
MGMT
Tangerine Dream
Pixies
Ramones
The Pretenders
Dixie Chicks
The Kinks
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "band" . ?e <Instagram_username> ?pv . ?pv <pred:value> "foofighters" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Instagram username
foofighters
function: FilterConcept
dependencies: 1
inputs: band
function: What
dependencies: 2
Answer: Foo Fighters