Question: Who was production designer on Love Affair, composed by Roy Webb?
Choices: Richard Gere
Van Nest Polglase
Paul Guilfoyle
William Henry Harrison
Rahul Dev Burman
Warren Ellis
Simon Cowell
Max Fleischer
Bernadette Peters
David Byrne
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <production_designer> ?e . ?e_1 <pred:name> "Love Affair" . ?e_1 <composer> ?e_2 . ?e_2 <pred:name> "Roy Webb" .   }
Program:
function: Find
inputs: Roy Webb
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Love Affair
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: production designer
forward
function: FilterConcept
dependencies: 4
inputs: human
function: What
dependencies: 5
Answer: Van Nest Polglase