<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54ff5c1eeb196-0314-beef-and-mushroom-stir-fry-xln.jpg>
<http://www.goodhousekeeping.com/food-recipes/easy/g1216/sliced-mushroom-recipes/>