<https://secure.gravatar.com/avatar/312563be7e607078c12bb30f3a0bbb44?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.olympia.gr/850941/ellada/prokopis-pavlopoulos-eimaste-pragma/>