Question: Which one has less running time among the feature films related to American football?
Choices: Remember the Titans
John Carter
G-Force
The Muppets
The Flintstones
National Treasure: Book of Secrets
Invincible
The Flintstones in Viva Rock Vegas
Old Dogs
Alvin and the Chipmunks: Chipwrecked
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "feature film" . ?e <sport> ?e_1 . ?e_1 <pred:name> "American football" .  ?e <duration> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: Find
inputs: American football
function: Relate
dependencies: 0
inputs: sport
backward
function: FilterConcept
dependencies: 1
inputs: feature film
function: SelectAmong
dependencies: 2
inputs: duration
smallest
Answer: Invincible