Question: What is the official website of the agent that is the distributor of Grey's Anatomy?
Choices: https://www.westminster.gov.uk/
http://movies.disney.com/watch-at-home
http://www.pref.miyagi.lg.jp
https://www.fcdallas.com
http://www.denvergov.org
http://www.nasinc.co.jp/jp/vampire-knight/
https://www.stokecityfc.com/
http://www.pwcgov.org/
http://www.winchestercollege.co.uk/
http://www.fcmetz.com
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "agent" . ?e_1 <distributor> ?e . ?e_1 <pred:name> "Grey's Anatomy" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Grey's Anatomy
function: Relate
dependencies: 0
inputs: distributor
forward
function: FilterConcept
dependencies: 1
inputs: agent
function: QueryAttr
dependencies: 2
inputs: official website
Answer: http://movies.disney.com/watch-at-home