Did {Solar_System} {parent astronomical body} {Sagittarius A*}?
What parent astronomical body in the solar system is Sagittarius A* from?
Which parent astronomical body in the solar system is Sagittarius A* from?
ASK WHERE { resource:Solar_System property:parent_astronomical_body resource:Sagittarius_A* }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q544> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P397> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q237284>. } 
ASK WHERE { wd:Q544 wdt:P397 wd:Q237284 }