Question: What is the official website of the child of Elizabeth II?
Choices:
http://www.fox.com/24
http://www.nsd.gov.in
http://www.nba.com/suns/
http://www.panam.org
http://www.belarus.by/
http://www.aek.com.cy/
http://www.mairie-versailles.fr
http://www.shirazcity.org
http://www.princeofwales.gov.uk/
https://livingstonfc.co.uk/
Answer: http://www.princeofwales.gov.uk/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <child> ?e . ?e_1 <pred:name> "Elizabeth II" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Elizabeth II
function: Relate
dependencies: 0
inputs: child
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: official website