<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f651246936d_-_farmhouse-bacon-cheeseburgers-opr0710-400.jpg>
<http://www.delish.com/cooking/g576/cheeseburger-recipes/>