Question: To how many different species does the members of the Animal Kingdom belong?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:kingdom <http://dbpedia.org/resource/Animal> . ?x onto:species ?uri  . ?uri rdf:type onto:Species}