<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6776947c19_-_cheddar-polenta-biscuits-ham-salad.jpg>
<http://www.delish.com/cooking/a24063/brown-bag-sandwich-recipes/>