What is <Open Library ID> of <Albert Ellis> ?
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Which is the Open Library ID for Albert Ellis?
SELECT DISTINCT ?c WHERE { resource:Albert_Ellis property:Open_Library_ID ?c }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q313931> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P648> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q313931 wdt:P648 ?answer}