<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://gioit.h-cdn.co/assets/16/13/320x160/landscape-1459438564-gallery-1458504959-grazia-pallagrosi-mindfulness.jpg>
<http://www.gioia.it/benessere/emozioni/how-to/a1315/minimalismo-stile-di-vita-mindfulness/>