<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://gioit.h-cdn.co/assets/16/33/1471732422-alessandra-brafa-set-video.png>
<http://www.gioia.it/idee/trend/consigli/a1427/agenzia-turistica-culturale-cambia-lavoro/>