<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f648a64b162_-_chorizo-manchego-red-onion-pizza-recipe-rbk0213-6vxf8a-xl.jpg>
<http://www.delish.com/cooking/g306/unconventional-pizza-toppings/?src=shelter_footer>