<https://secure.gravatar.com/avatar/b20fac0c27df67e54bda9042398a40d3?s=96&amp;d=blank&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://fila7lam.com/%D8%A7%D9%84%D9%83%D9%81%D8%AA%D8%A9-%D9%81%D9%8A-%D8%A7%D9%84%D9%85%D9%86%D8%A7%D9%85/>