Question: What visual artwork's release region is the United States of America and official website is http://www.toei-video.co.jp/DVD/sp21/hokutonoken.html?
Choices: Octopussy
Talk to Her
A Prophet
An Inconvenient Truth
Dr. Strangelove
Hulk
Rebecca
Fist of the North Star
Pleasantville
A Prairie Home Companion
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <film_release_region> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <official_website> ?pv . ?pv <pred:value> "http://www.toei-video.co.jp/DVD/sp21/hokutonoken.html" .  }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: film release region
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: FindAll
function: FilterStr
dependencies: 3
inputs: official website
http://www.toei-video.co.jp/DVD/sp21/hokutonoken.html
function: FilterConcept
dependencies: 4
inputs: visual artwork
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: Fist of the North Star