Question: What are some families of mammals in the animal kingdom?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/kingdom> <http://dbpedia.org/resource/Animal> . ?x <http://dbpedia.org/ontology/family> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Mammal>}