Question: What is the fictional character which belongs to families of Darth Vader and Padm Amidala?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/property/family> <http://dbpedia.org/resource/Darth_Vader> . ?uri <http://dbpedia.org/property/family> <http://dbpedia.org/resource/Padmé_Amidala> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/FictionalCharacter>}