<https://secure.gravatar.com/avatar/0c55e7c2c90f46ee6ade15e1b24eb5f2?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://libertin.gr/%CF%84%CE%BF%CE%BD-%CE%AE%CF%80%CE%B9%CE%B1%CE%BC%CE%B5/>