What is <proved by> of <Poincaré conjecture> ?
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What does the Poincare conjecture prove?
SELECT DISTINCT ?b WHERE { resource:Poincaré_conjecture property:proved_by ?b }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q203586> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1318> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q203586 wdt:P1318 ?answer}
Grigori Perelman