What is the {human} for {composer} of {La traviata}
Who composed La Traviata?
Who is the person that composed La Traviata?
SELECT DISTINCT ?w WHERE { resource:La_traviata property:composer ?w . ?w rdf:type ontology:human }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q186162> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P86> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?obj where { wd:Q186162 wdt:P86 ?obj . ?obj wdt:P31 wd:Q5 } 
Giuseppe Verdi