<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54febd568cb3c-ghk-tomato-sauce-de.jpg>
<http://www.goodhousekeeping.com/food-recipes/cooking/tips/a19141/old-produce-recipes/>