Question: What is the Stack Exchange tag of class of instruments that have the UNSPSC Code of 60131102?
Choices:
https://travel.stackexchange.com/tags/china
https://music.stackexchange.com/tags/trombone
https://gamedev.stackexchange.com/tags/windows
https://ja.stackoverflow.com/tags/perl
https://stackoverflow.com/tags/python-2.x
https://wordpress.stackexchange.com/tags/windows
https://stackoverflow.com/tags/windows-xp
https://superuser.com/tags/perl
https://softwareengineering.stackexchange.com/tags/c%2b%2b
https://stackoverflow.com/tags/voip
Answer: https://music.stackexchange.com/tags/trombone
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "class of instruments" . ?e <UNSPSC_Code> ?pv_1 . ?pv_1 <pred:value> "60131102" . ?e <Stack_Exchange_tag> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: UNSPSC Code
60131102
function: FilterConcept
dependencies: 1
inputs: class of instruments
function: QueryAttr
dependencies: 2
inputs: Stack Exchange tag