What is <commissioned by> of <Buckingham Palace> ?
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Buckingham Palace is commissioned by what body?
SELECT DISTINCT ?b WHERE { resource:Buckingham_Palace property:commissioned_by ?b }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42182> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P88> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q42182 wdt:P88 ?answer}
John Sheffield, 1st Duke of Buckingham and Normanby