Question: What is the official website of the person who was married to Mariah Carey until 2016?
Choices: http://www.manisaspor.org.tr
http://www.jamiroquai.com/
http://huntingtonny.gov
http://clubtiburonesrojos.mx
http://www.uhfc.tv/
http://www.nickcannon.com
http://cosmopolisthefilm.com
http://www.ci.visalia.ca.us
http://www.welcometorecall.com
http://www.baconbros.com/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <spouse> ?e_1 . ?e_1 <pred:name> "Mariah Carey" .  [ <pred:fact_h> ?e ; <pred:fact_r> <spouse> ; <pred:fact_t> ?e_1 ] <end_time> ?qpv . ?qpv <pred:year> 2016 . ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Mariah Carey
function: Relate
dependencies: 0
inputs: spouse
backward
function: QFilterYear
dependencies: 1
inputs: end time
2016
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: official website
Answer: http://www.nickcannon.com