<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6512372e84_-_bison-bacon-cheeseburgers-recipe-rbk0611-izvwkg-xl.jpg>
<http://www.delish.com/cooking/g576/cheeseburger-recipes/>