<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54feae55b09bf-burger-with-french-onions-0611-xl.jpg>
<http://www.goodhousekeeping.com/food-recipes/g210/summer-grilling-cookbook/>