What is {deathdate} of {inventor} of {Messier 83} ?
When did Messier 83's inventor die?
When did the inventor of the Messier 83 die?
SELECT ?q WHERE { ?u property:date_of_death ?q . resource:Messier_83 property:discoverer_or_inventor ?u }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q14030> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P61>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P570> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q14030 wdt:P61 ?X . ?X wdt:P570 ?answer}
1762-03-21T00:00:00Z