<https://viraketab.com/writer/%d9%87%d9%86%d8%b1%db%8c-%da%a9%d9%84%d9%88%d8%af/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://viraketab.com/writer/%D9%87%D9%86%D8%B1%DB%8C-%DA%A9%D9%84%D9%88%D8%AF/>