Question: What is the official website of the US town that is the twinned administrative body of Baghdad?
Choices:
http://www.gameloft.com/minisites/narnia/
http://www.seattleu.edu
http://www.foxmovies.com/movies/poltergeist
http://www.concordma.gov/
http://candicebergen.ca/
http://www.rushmovie.com/
http://www.mgm.com/#/our-titles/772/The-Graduate/
http://www.elizabeththegoldenage.net
http://www.co.berks.pa.us
http://www.mgm.com/title_title.do?title_star=TOMNEVER
Answer: http://www.concordma.gov/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "town of the United States" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Baghdad" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Baghdad
function: Relate
dependencies: 0
inputs: twinned administrative body
backward
function: FilterConcept
dependencies: 1
inputs: town of the United States
function: QueryAttr
dependencies: 2
inputs: official website