Question: Which person produced the movie titled Chinatown?
Choices: Carmelo Anthony
Andrew Lau
David Geffen
Ashton Kutcher
Buddy DeSylva
Sean Combs
Robert Evans
Colin Wilson
Robert Greenhut
Preston Sturges
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <producer> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "film" . ?e_1 <title> ?pv . ?pv <pred:value> "Chinatown" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: title
Chinatown
function: FilterConcept
dependencies: 1
inputs: film
function: Relate
dependencies: 2
inputs: producer
forward
function: FilterConcept
dependencies: 3
inputs: human
function: What
dependencies: 4
Answer: Robert Evans