<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f65123c4579_-_umami-burgers-port-stilton-recipe-fw0611-jfvrx4-xl.jpg>
<http://www.delish.com/cooking/g576/cheeseburger-recipes/>