<http://amanoamano-miria.blogspot.com/2010/11/un-timbro-due-cards-molto-diverse.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://amanoamano-miria.blogspot.com/2010/11/un-timbro-due-cards-molto-diverse.html>