Question: What is the Twitter username of the United States college or university whose official website is http://www.purdue.edu?
Choices:
TherealTaraji
TODAYshow
realmadrid
charliesheen
bg_cska
sweden
clubbrugge
EvangelineLilly
lifeatpurdue
tamworthfc
Answer: lifeatpurdue
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "colleges and universities in the United States" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.purdue.edu" . ?e <Twitter_username> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.purdue.edu
function: FilterConcept
dependencies: 1
inputs: colleges and universities in the United States
function: QueryAttr
dependencies: 2
inputs: Twitter username