Question: Which human is the main subject of All the President's Men?
Choices: Gillian Anderson
Richard Nixon
Steve Jobs
Max Fleischer
Franz Kafka
William Henry Harrison
Richard Gere
Sylvia Plath
Virginia Woolf
Sylvester Stallone
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <main_subject> ?e . ?e_1 <pred:name> "All the President's Men" .   }
Program:
function: Find
inputs: All the President's Men
function: Relate
dependencies: 0
inputs: main subject
forward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: Richard Nixon