Question: What is the Stack Exchange tag of electrical engineering?
Choices:
https://engineering.stackexchange.com/tags/mechanical-engineering
https://stackoverflow.com/tags/artificial-intelligence
https://stackoverflow.com/tags/windows-7
https://ja.stackoverflow.com/tags/c%2b%2b
https://webapps.stackexchange.com/tags/windows
https://travel.stackexchange.com/tags/catalonia
https://politics.stackexchange.com/tags/donald-trump
https://engineering.stackexchange.com/tags/electrical-engineering
https://reverseengineering.stackexchange.com/tags/windows
https://stackoverflow.com/tags/oop
Answer: https://engineering.stackexchange.com/tags/electrical-engineering
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "electrical engineering" . ?e <Stack_Exchange_tag> ?pv .  }
Program:
function: Find
inputs: electrical engineering
function: QueryAttr
dependencies: 0
inputs: Stack Exchange tag