What is <office held by head of state> of <knyaz> ?
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what is in the office held by head of state of knyaz ?
SELECT DISTINCT ?e WHERE { ?e property:office_held_by_head_of_state resource:knyaz }
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/P1906> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q273613>. }
select distinct ?answer where { ?answer wdt:P1906 wd:Q273613}
principality