<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f9226c723c7_-_broccoli-beef-potato-hotdish-recipe-ew0910-th2.jpg>
<http://www.delish.com/cooking/a37348/potato-casserole/>