Question: What is the official website of the ice hockey team that drafts Ben Johnson (who is connected to the sport ice hockey)?
Choices: https://www.yahoo.com/
http://www.harrogate.gov.uk/
http://www.kidcudi.com/
http://www.wheaton.edu
http://www.gov.im/
http://www.gilacountyaz.gov
http://devils.nhl.com/
http://www.lifesthatway.com/
http://www.meangirls.com/indexflash.html
http://www.soloistmovie.com/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "ice hockey team" . ?e_1 <drafted_by> ?e . ?e_1 <pred:name> "Ben Johnson" . ?e_1 <sport> ?e_2 . ?e_2 <pred:name> "ice hockey" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: ice hockey
function: Relate
dependencies: 0
inputs: sport
backward
function: Find
inputs: Ben Johnson
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: drafted by
forward
function: FilterConcept
dependencies: 4
inputs: ice hockey team
function: QueryAttr
dependencies: 5
inputs: official website
Answer: http://devils.nhl.com/