<https://secure.gravatar.com/avatar/8057d62dc6c16223566de193e0bc4a44?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ar.bayt-almaelumat.com/%D9%87%D9%84-%D8%AA%D8%B9%D9%84%D9%85-%D8%B9%D9%86-%D8%B4%D8%A7%D8%B1%D9%88%D8%AE%D8%A7%D9%86-%D9%82%D8%B5%D9%8A%D8%B1-%D9%88%D9%85%D9%81%D9%8A%D8%AF/>