Question: What is the official website of the capital of Maine (from the US)?
Choices:
http://www.thegrantorino.com/
http://www.cityhs.net
http://www.sonypictures.jp/archive/movie/worldcinema/sweptaway/
http://www.cantonohio.gov/
http://www.comune.brescia.it
http://brightonrockmovie.com/
http://co.wayne.in.us
http://www.ci.augusta.me.us/
http://www.hellboymovie.com
http://www.grammy.com/en
Answer: http://www.ci.augusta.me.us/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e <capital_of> ?e_1 . ?e_1 <pred:name> "Maine" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Maine
function: Relate
dependencies: 0
inputs: capital of
backward
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: official website