Question: What is the Stack Exchange tag for the industry, whose copyright holder is Microsoft (the one that produces Windows 7)?
Choices: https://stackoverflow.com/tags/php-7
https://webapps.stackexchange.com/tags/google-search
https://stackoverflow.com/tags/blu-ray
https://stackoverflow.com/tags/windows-7
https://stackoverflow.com/tags/havok
https://stackoverflow.com/tags/turkish
https://biology.stackexchange.com/tags/biochemistry
https://stackoverflow.com/tags/gmt
https://stackoverflow.com/tags/xbox360
https://math.stackexchange.com/tags/statistics
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "industry" . ?e <copyright_holder> ?e_1 . ?e_1 <pred:name> "Microsoft" . ?e_2 <manufacturer> ?e_1 . ?e_2 <pred:name> "Windows 7" .  ?e <Stack_Exchange_tag> ?pv .  }
Program:
function: Find
inputs: Windows 7
function: Relate
dependencies: 0
inputs: manufacturer
forward
function: Find
inputs: Microsoft
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: copyright holder
backward
function: FilterConcept
dependencies: 4
inputs: industry
function: QueryAttr
dependencies: 5
inputs: Stack Exchange tag
Answer: https://stackoverflow.com/tags/windows-7