<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://gioit.h-cdn.co/assets/16/26/640x320/landscape-1467379578-dieta-limone-1.jpg>
<http://www.gioia.it/benessere/diete/consigli/a1103/dieta-del-limone-per-dimagrire-funziona/>