<https://www.italiamac.it/forum/topic/292835-mac-motociclisti/page/176/#comment-4257375>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.italiamac.it/forum/topic/292835-mac-motociclisti/page/176/?tab=comments#comment-4257728>