What is <DBLP ID> of <John von Neumann> ?
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Which is the DBLP ID of John von Neumann?
SELECT DISTINCT ?b WHERE { resource:John_von_Neumann property:DBLP_author_ID ?b }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q17455> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2456> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q17455 wdt:P2456 ?answer}