How many bacterias are there whose division is Firmicutes?
SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/division> <http://dbpedia.org/resource/Firmicutes>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Bacteria>}
Firmicutes