Question: How many religions are followed amongst the people who've worked in the Korean army?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:militaryBranch <http://dbpedia.org/resource/Republic_of_Korea_Army> . ?x onto:religion ?uri . }