Question: About the person that is a Walk the Line cast member (this statement's character role is Ray Cash), tell me his or her official website.
Choices: http://chrysalisrecordings.com/
http://www.coreyburton.com
http://www.konami.com/officialsites/silenthill/
http://www.pref.kanagawa.jp
http://www.csuohio.edu/
http://robert-patrick.ws/
http://www.diddy.com
http://www.mcclatchy.com/
http://www.comune.siracusa.it
https://www.acmilan.com/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <cast_member> ?e . ?e_1 <pred:name> "Walk the Line" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <cast_member> ; <pred:fact_t> ?e ] <character_role> ?qpv . ?qpv <pred:value> "Ray Cash" . ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Walk the Line
function: Relate
dependencies: 0
inputs: cast member
forward
function: QFilterStr
dependencies: 1
inputs: character role
Ray Cash
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: official website
Answer: http://robert-patrick.ws/