Question: What film's official website is http://warpfilms.com/feature/submarine/?
Choices: Tucker: The Man and His Dream
The Ghost Writer
Pleasantville
Talk to Her
Quo Vadis
The Maltese Falcon
The Savages
A Prairie Home Companion
Beowulf
Submarine
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <official_website> ?pv . ?pv <pred:value> "http://warpfilms.com/feature/submarine/" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://warpfilms.com/feature/submarine/
function: FilterConcept
dependencies: 1
inputs: film
function: What
dependencies: 2
Answer: Submarine