<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/320x368/54ec075350304_-_sweet-potatoes-chicken-penne-pasta-salmon-tacos-xl.jpg>
<http://www.womansday.com/health-fitness/nutrition/g1740/supermarket-superfoods/>