What is the {road} for {maintained by} of {Las Vegas}
What road does the city of Las Vegas maintain?
What is the name of the road maintained by the city of Las Vegas?
SELECT DISTINCT ?e WHERE { ?e rdf:type ontology:road . ?e property:maintained_by resource:Las_Vegas }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P126> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q23768> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q34442> } 
 select distinct ?sbj where { ?sbj wdt:P126 wd:Q23768 . ?sbj wdt:P31 wd:Q34442 } 