Question: What is the association football club whose Instagram username is vfb?
Choices: Brisbane Roar FC
Greenock Morton F.C.
Panathinaikos F.C.
Stade Brestois 29
SV Darmstadt 98
VfB Stuttgart
Stoke City F.C.
Middlesbrough F.C.
PFC Beroe Stara Zagora
Zamalek SC
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "association football club" . ?e <Instagram_username> ?pv . ?pv <pred:value> "vfb" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Instagram username
vfb
function: FilterConcept
dependencies: 1
inputs: association football club
function: What
dependencies: 2
Answer: VfB Stuttgart