Question: What are some cars similar to luxury cars?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/class> <http://dbpedia.org/resource/Luxury_vehicle> . ?x <http://dbpedia.org/property/related> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Automobile>}