Question: How many molluscs are there whose families are Buccinidae and Buccinoidea?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?uri <http://dbpedia.org/ontology/family> <http://dbpedia.org/resource/Buccinidae> . ?uri <http://dbpedia.org/ontology/family> <http://dbpedia.org/resource/Buccinoidea>}
Answer: There are [567] molluscs that belong to families Buccinidae and Buccinoidea.