Question: What is the official website of the association football club whose Twitter username is FCDallas?
Choices: http://www.projectprometheus.com/
http://www.arbroathfc.co.uk/
https://www.fcdallas.com
https://www.terrypratchettbooks.com
http://www.johncusack.net
http://www.carldaviscollection.com
http://www.leessangcompany.com/
https://linkinpark.com/
http://www.smtown.com
http://www.redgrave.com/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "association football club" . ?e <Twitter_username> ?pv_1 . ?pv_1 <pred:value> "FCDallas" . ?e <official_website> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Twitter username
FCDallas
function: FilterConcept
dependencies: 1
inputs: association football club
function: QueryAttr
dependencies: 2
inputs: official website
Answer: https://www.fcdallas.com