What is <companion of> of <Proxima Centauri> ?
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What is Proxima Centauri's companion?
SELECT DISTINCT ?l WHERE { ?l property:companion_of resource:Proxima_Centauri }
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/P399> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q14266>. }
select distinct ?answer where { ?answer wdt:P399 wd:Q14266}
Alpha Centauri B Alpha Centauri A