What is the {prefecture-level city} for {contains administrative territorial entity} of {Guangdong}
Which is the prefecture level city that contains Guangdong as an administrative territorial entity?
 select distinct ?obj where { wd:Q15175 wdt:P150 ?obj . ?obj wdt:P31 wd:Q748149 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q15175> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P150> . ?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/Q748149> } 
Where is Guangdong located?