Question: What is the Twitter username of the band whose Instagram username is megadeth?
Choices:
Schwarzenegger
carrieunderwood
SandraBernhard
dark_shark
Realeugenelevy
JohnDingell
mcdonaldcomedy
Megadeth
enriqueiglesias
stevencurtis
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Instagram username
megadeth
function: FilterConcept
dependencies: 1
inputs: band
function: QueryAttr
dependencies: 2
inputs: Twitter username
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "band" . ?e <Instagram_username> ?pv_1 . ?pv_1 <pred:value> "megadeth" . ?e <Twitter_username> ?pv .  }
Answer: Megadeth