Question: Which film is mostly about a psychologist?
Choices: Dr. No
Talk to Her
Mumford
GoldenEye
Hampstead
A Prairie Home Companion
Children of Men
Dresden
Pittsburgh
Rebecca
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "psychologist" .   }
Program:
function: Find
inputs: psychologist
function: Relate
dependencies: 0
inputs: main subject
backward
function: FilterConcept
dependencies: 1
inputs: film
function: What
dependencies: 2
Answer: Mumford