Question: What is the film production company of Ghostbusters which was nominated for a BAFTA Award for Best Special Visual Effects?
Choices: Amblin Entertainment
Columbia Pictures
Summit Entertainment
Touchstone Pictures
Focus Features
Reliance Entertainment
PolyGram Filmed Entertainment
Lucasfilm
Hollywood Pictures
StudioCanal
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film production company" . ?e_1 <production_company> ?e . ?e_1 <pred:name> "Ghostbusters" . ?e_1 <nominated_for> ?e_2 . ?e_2 <pred:name> "BAFTA Award for Best Special Visual Effects" .   }
Program:
function: Find
inputs: BAFTA Award for Best Special Visual Effects
function: Relate
dependencies: 0
inputs: nominated for
backward
function: Find
inputs: Ghostbusters
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: production company
forward
function: FilterConcept
dependencies: 4
inputs: film production company
function: What
dependencies: 5
Answer: Columbia Pictures