Question: Which website represents the studio album on the Vertigo Records label?
Choices:
http://www.wexford.ie
http://www.arriyadh.com
https://www.metallica.com/releases/albums/release-4213.html
http://www.rockyhorror.com/
http://www.marthaplimpton.com
http://www.houstontexans.com/
http://www.davematthewsband.com/
http://www.pampanga.gov.ph/
http://www.ogcnice.com/
http://www.bathcityfc.com/
Answer: https://www.metallica.com/releases/albums/release-4213.html
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "studio album" . ?e <record_label> ?e_1 . ?e_1 <pred:name> "Vertigo Records" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Vertigo Records
function: Relate
dependencies: 0
inputs: record label
backward
function: FilterConcept
dependencies: 1
inputs: studio album
function: QueryAttr
dependencies: 2
inputs: official website