<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/54f5f8ec4e143_-_cipes-classic-all-american-bacon-cheeseburgers-lgn-91238449.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g775/hamburger-recipes/>