What is <commander of> of <air force> ?
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Who is the commander of the air force?
SELECT DISTINCT ?x WHERE { ?x property:commander_of_(DEPRECATED) resource:air_force }
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/P598> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q61883>. }
select distinct ?answer where { ?answer wdt:P598 wd:Q61883}
Pavel Zhigarev