<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f8c7b73bc8b_-_winter-vegetable-pot-pie-0210-recipe-xl.jpg>
<http://www.delish.com/cooking/a37348/potato-casserole/>