<https://footofan.com/tag/%d9%87%d8%aa%d9%84-%d9%87%d8%a7%db%8c-%da%af%d8%b1%d8%a7%d9%86-%d9%82%db%8c%d9%85%d8%aa/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://footofan.com/tag/%D9%87%D8%AA%D9%84-%D9%87%D8%A7%DB%8C-%DA%AF%D8%B1%D8%A7%D9%86-%D9%82%DB%8C%D9%85%D8%AA/>