<https://mediacenter.ps/archives/tag/%d8%a7%d9%84%d8%ad%d9%83%d9%88%d9%85%d8%a9-%d9%81%d9%8a-%d8%a7%d8%b3%d8%b1%d8%a7%d8%a6%d9%8a%d9%84#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mediacenter.ps/archives/tag/%D8%A7%D9%84%D8%AD%D9%83%D9%88%D9%85%D8%A9-%D9%81%D9%8A-%D8%A7%D8%B3%D8%B1%D8%A7%D8%A6%D9%8A%D9%84>