Question: What are the titles of the films that has Ken Burns as a cast member?
Choices: Scream 4
Looney Tunes: Back in Action
Gettysburg
The Office
Montana
Scrooged
Over the Top
Blade Runner
Gosford Park
The Men Who Stare at Goats
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <cast_member> ?e_1 . ?e_1 <pred:name> "Ken Burns" .  ?e <title> ?pv .  }
Program:
function: Find
inputs: Ken Burns
function: Relate
dependencies: 0
inputs: cast member
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttr
dependencies: 2
inputs: title
Answer: Gettysburg