What is <start time> of <Homo ergaster> ?
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What time does Homo ergaster start?
SELECT DISTINCT ?i WHERE { resource:Homo_ergaster property:start_time ?i }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q105777> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P580> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q105777 wdt:P580 ?answer}
-1900000-01-01T00:00:00Z