<https://forum.motor1.com/topic/49471-codice-sblocco-per-grande-punto/page/7/#comment-928319>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.motor1.com/topic/49471-codice-sblocco-per-grande-punto/page/7/?tab=comments#comment-926442>