<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/320x426/54f5fb057cb43_-_imeline-heinz-ketchup-tupperware-ritz-crackers-poptarts-lgn.jpg>
<http://www.womansday.com/food-recipes/cooking-tips/tips/g963/history-of-food/>