Question: Tell me the person who is Marcel Proust's teacher.
Choices: Ludwig von Mises
Peter MacNicol
Sigmund Freud
Vanilla Ice
Randy Jackson
William Henry Harrison
Sylvester Stallone
Max Fleischer
Bertrand Russell
Henri Bergson
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <student> ?e_1 . ?e_1 <pred:name> "Marcel Proust" .   }
Program:
function: Find
inputs: Marcel Proust
function: Relate
dependencies: 0
inputs: student
backward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: Henri Bergson