Question: What is the official website of the association football club which  has headquarters located in Reims?
Choices:
http://www.atlantefc.com.mx
http://www.stade-de-reims.com
http://www.olivianewton-john.com
http://www.phoenix-der-film.de/
http://www.kellogg.northwestern.edu/
http://www.girondins.com/
http://www.k-state.edu
http://www.pitbullmusic.com/
https://www.braunschweig.de/
https://www.normandie.fr/
Answer: http://www.stade-de-reims.com
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "association football club" . ?e <headquarters_location> ?e_1 . ?e_1 <pred:name> "Reims" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Reims
function: Relate
dependencies: 0
inputs: headquarters location
backward
function: FilterConcept
dependencies: 1
inputs: association football club
function: QueryAttr
dependencies: 2
inputs: official website