Question: What is the official website of the public university where Johann Wolfgang von Goethe was educated?
Choices:
http://www.e1music.us/
http://www.longbranch.org/
http://www.cedar-rapids.org
http://bloomington.in.gov/
http://www.rickjames.com
http://www.co.jefferson.tx.us
http://www.lakeshoreentertainment.com
https://www.uni-leipzig.de/
http://www.foodnetwork.com
http://www.vcu.edu/
Answer: https://www.uni-leipzig.de/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "public university" . ?e_1 <educated_at> ?e . ?e_1 <pred:name> "Johann Wolfgang von Goethe" .  ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Johann Wolfgang von Goethe
function: Relate
dependencies: 0
inputs: educated at
forward
function: FilterConcept
dependencies: 1
inputs: public university
function: QueryAttr
dependencies: 2
inputs: official website