<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/320x320/54f0f8bb19ca4_-_1-grilled-burgers-lgn.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g840/perfect-burger-recipe/>