What is <date of taxon name publication> of <indium> ?
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What is the date indium was scientifically established?
SELECT DISTINCT ?a WHERE { resource:Indium property:year_of_taxon_publication ?a }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1094> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P574> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q1094 wdt:P574 ?answer}