Question: Which person's official website is http://www.davidwain.com/?
Choices: William Henry Harrison
Hilary Duff
David Wain
Ricardo Antonio Chavira
Lauren Tom
Richard Gere
Charles Darwin
John Ford
Max Fleischer
Sylvester Stallone
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <official_website> ?pv . ?pv <pred:value> "http://www.davidwain.com/" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.davidwain.com/
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: David Wain