Question: What film has a script written by Walter F. Parkes?
Choices:
WarGames
Talk to Her
A Prairie Home Companion
September
In the Bedroom
Pleasantville
A Streetcar Named Desire
Montana
Rebecca
The Bridges of Madison County
Answer: WarGames
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <screenwriter> ?e_1 . ?e_1 <pred:name> "Walter F. Parkes" .   }
Program:
function: Find
inputs: Walter F. Parkes
function: Relate
dependencies: 0
inputs: screenwriter
backward
function: FilterConcept
dependencies: 1
inputs: film
function: What
dependencies: 2