<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1276/54ff6c5ae2242-ghk-0614-food-crunchy-onion-burger-s2-50950643.jpg>
<http://www.goodhousekeeping.com/food-recipes/g1308/burger-toppings/>