<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://gioit.h-cdn.co/assets/16/17/980x490/landscape-1461918898-amore-a-distanza.jpg>
<http://www.gioia.it/benessere/emozioni/news/a548/amore-distanza-vantaggi/>