What is <Wikimedia username> of <John Cena> ?
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Which is the Wikimedia username for John Cena?
SELECT DISTINCT ?l WHERE { resource:John_Cena property:Wikimedia_username ?l }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q44437> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4174> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q44437 wdt:P4174 ?answer}
ActuallyJohnCena1