Question: What is the official website for the university located in Ghana?
Choices: http://www.deebaker.com
http://terminatorsalvation.warnerbros.com/dvd/index.html
https://www.dccomics.com/characters/catwoman
https://www.freiburg.de/
http://www.ug.edu.gh/
http://www.ci.mount-vernon.wa.us/
http://www.gov.yk.ca/
https://www.anthonyhorowitz.com/
https://www.metmuseum.org/
http://www.sslazio.it/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "university" . ?e <country> ?e_1 . ?e_1 <pred:name> "Ghana" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Ghana
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: university
function: QueryAttr
dependencies: 2
inputs: official website
Answer: http://www.ug.edu.gh/