Question: Of visual artworks featuring time travel, which clocks in as longest?
Choices: The Towering Inferno
The Butterfly Effect
The Fifth Element
Training Day
A Prairie Home Companion
The Terminator
Talk to Her
Rebecca
Terminator Salvation
Pleasantville
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <uses> ?e_1 . ?e_1 <pred:name> "time travel" .  ?e <duration> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: Find
inputs: time travel
function: Relate
dependencies: 0
inputs: uses
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: SelectAmong
dependencies: 2
inputs: duration
largest
Answer: The Butterfly Effect