Question: What is the shortest feature film by Columbia Pictures?
Choices: John Carter
G-Force
The Flintstones in Viva Rock Vegas
Last Action Hero
Ghostbusters II
Ghostbusters
Alvin and the Chipmunks: Chipwrecked
Old Dogs
The Muppets
National Treasure: Book of Secrets
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "feature film" . ?e <production_company> ?e_1 . ?e_1 <pred:name> "Columbia Pictures" .  ?e <duration> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: Find
inputs: Columbia Pictures
function: Relate
dependencies: 0
inputs: production company
backward
function: FilterConcept
dependencies: 1
inputs: feature film
function: SelectAmong
dependencies: 2
inputs: duration
smallest
Answer: Ghostbusters II