Question: Count the number of different religions that field marshals have followed?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/militaryRank> <http://dbpedia.org/resource/Field_marshal> . ?x <http://dbpedia.org/ontology/religion> ?uri  . }
Answer: There are [14] religions of the people from Field marshal military rank.