What is the {company} for {chief executive officer} of {Mark Zuckerberg}
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Which is the company that CEO Mark Zuckerberg works for?
SELECT DISTINCT ?k WHERE { ?k property:chief_executive_officer resource:Mark_Zuckerberg . ?k rdf:type ontology:company }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P169> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q36215> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q783794> } 
 select distinct ?sbj where { ?sbj wdt:P169 wd:Q36215 . ?sbj wdt:P31 wd:Q783794 } 
Facebook, Inc.