Question: What is the official website of the person whose Twitter username is GeorgeStrait?
Choices:
http://www.hbo.com/band
http://www.angelsanddemons.com/
http://www.lorettalynn.com/
http://www.127hoursmovie.com
https://www.brentfordfc.com/
http://www.matchpoint.dreamworks.com
http://wp.stolaf.edu
http://www.georgestrait.com/
http://www.wits.ac.za/
http://www.parishilton.com
Answer: http://www.georgestrait.com/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <Twitter_username> ?pv_1 . ?pv_1 <pred:value> "GeorgeStrait" . ?e <official_website> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Twitter username
GeorgeStrait
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: official website