Question: Which movie that mainly depicts American football has the longest runtime?
Choices: G-Force
National Treasure: Book of Secrets
The Flintstones
Old Dogs
Remember the Titans
Invincible
The Flintstones in Viva Rock Vegas
Alvin and the Chipmunks: Chipwrecked
Holes
The Muppets
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "feature film" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "American football" .  ?e <duration> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: Find
inputs: American football
function: Relate
dependencies: 0
inputs: main subject
backward
function: FilterConcept
dependencies: 1
inputs: feature film
function: SelectAmong
dependencies: 2
inputs: duration
largest
Answer: Remember the Titans