Question: What feature film has the official website http://www.ghostbusters.com/?
Choices:
Ghostbusters
National Treasure: Book of Secrets
Mighty Joe Young
Back to the Future Part III
Old Dogs
Earth
Alvin and the Chipmunks: Chipwrecked
Holes
Hannah Montana: The Movie
Hook
Answer: Ghostbusters
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "feature film" . ?e <official_website> ?pv . ?pv <pred:value> "http://www.ghostbusters.com/" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.ghostbusters.com/
function: FilterConcept
dependencies: 1
inputs: feature film
function: What
dependencies: 2