What is <birthday> of <winter solstice> ?
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What is the date of the winter solstice?
SELECT DISTINCT ?x WHERE { ?x property:birthday resource:winter_solstice }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject>  ?answer. ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3150> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q207932>. }
select distinct ?answer where { ?answer wdt:P3150 wd:Q207932}
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