What is <studied by> of <Persian> ?
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Which is studied by Persian?
SELECT DISTINCT ?b WHERE { resource:Persian property:studied_by ?b }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q9168> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2579> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q9168 wdt:P2579 ?answer}
Persian studies