<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eba0d60cb3a_-_08-wd-burger-recipes-sweet-and-spicy-salmon-burgers-xl.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g775/hamburger-recipes/>