Question: Count the total number of software whose programming language is C++ and operating system is Microsoft Windows?
SPARQL query:
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT COUNT(?uri) WHERE {?uri prop:programmingLanguage <http://dbpedia.org/resource/C++> . ?uri onto:operatingSystem <http://dbpedia.org/resource/Microsoft_Windows> }