Question: What programming language has an operating system whose Stack Exchange tag is https://stackoverflow.com/tags/solaris?
Choices: Perl
Lisp
C#
Julia
PHP
C++
Java
Iraq national football team
C
Python
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "programming language" . ?e <operating_system> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "industry" . ?e_1 <Stack_Exchange_tag> ?pv_1 . ?pv_1 <pred:value> "https://stackoverflow.com/tags/solaris" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Stack Exchange tag
https://stackoverflow.com/tags/solaris
function: FilterConcept
dependencies: 1
inputs: industry
function: Relate
dependencies: 2
inputs: operating system
backward
function: FilterConcept
dependencies: 3
inputs: programming language
function: What
dependencies: 4
Answer: Perl