<https://binyanbooks.com/products/\u0644\u0627-\u0634\u064A\u0621-\u064A\u0642\u064A\u062F-\u0623\u0646\u0648\u062B\u062A\u064A>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://binyanbooks.com/products/%D9%84%D8%A7-%D8%B4%D9%8A%D8%A1-%D9%8A%D9%82%D9%8A%D8%AF-%D8%A3%D9%86%D9%88%D8%AB%D8%AA%D9%8A>