<https://forum.frandroid.com/topic/10213-o%C3%B9-sont-les-annonces/#comment->
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.frandroid.com/topic/10213-o%C3%B9-sont-les-annonces/?tab=comments#comment-160529>