Question: What is the Twitter username of X-Men (the one whose official website is http://www.x-menmovies.com/)?
Choices:
Chrysler
HoustonTX
Trabzonspor
SachsenDe
RodneyJerkins
cookingvinyl
canadiensmtl
xmenmovies
DavidMamet
Pacers
Answer: xmenmovies
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "X-Men" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.x-menmovies.com/" . ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: X-Men
function: FilterStr
dependencies: 0
inputs: official website
http://www.x-menmovies.com/
function: QueryAttr
dependencies: 1
inputs: Twitter username