Question: What software has the Stack Exchange tag of https://stackoverflow.com/tags/unix?
Choices:
Unix
Solaris
Windows 7
FreeBSD
Regina
iOS
Mac OS
Android
Linux
macOS
Answer: Unix
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "software" . ?e <Stack_Exchange_tag> ?pv . ?pv <pred:value> "https://stackoverflow.com/tags/unix" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Stack Exchange tag
https://stackoverflow.com/tags/unix
function: FilterConcept
dependencies: 1
inputs: software
function: What
dependencies: 2