<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f682a59f993_-_skillet-tuna-casserole-400.jpg>
<http://www.delish.com/cooking/nutrition/g2635/low-fat-dinner-recipes/?src=shelter_footer>