What is the {G-type main-sequence star} for {parent astronomical body} of {Neptune}
What stars are closest to Neptune?
 select distinct ?obj where { wd:Q332 wdt:P397 ?obj . ?obj wdt:P31 wd:Q5864 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q332> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P397> . ?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/Q5864> } 
What are Neptune's closest stars?