What is <earliest date> of <pigment> ?
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Which is the earliest date of pigment?
SELECT DISTINCT ?i WHERE { resource:pigment property:earliest_date ?i }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q161179> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1319> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q161179 wdt:P1319 ?answer}
-400000-01-01T00:00:00Z