Question: What is the official website of the association football club headquartered in Guangzhou?
Choices: http://www.neworder.com/
http://www.gzevergrandefc.com/
http://www.motorola.com
http://blackmountaincollege.org/
http://www.csun.edu
http://www.lacounty.gov
http://www.moqawama.org/
http://www.spartak-nalchik.ru
http://www.tbilisi.gov.ge/
http://www.slc.edu
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "association football club" . ?e <headquarters_location> ?e_1 . ?e_1 <pred:name> "Guangzhou" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Guangzhou
function: Relate
dependencies: 0
inputs: headquarters location
backward
function: FilterConcept
dependencies: 1
inputs: association football club
function: QueryAttr
dependencies: 2
inputs: official website
Answer: http://www.gzevergrandefc.com/