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<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.ketabrah.ir/author/30114-%D8%B9%D9%84%DB%8C%D8%B1%D8%B6%D8%A7-%DA%A9%DB%8C%D9%82%D8%A8%D8%A7%D8%AF%DB%8C>