<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f9d8ebbe50f_-_pesto-mozzarella-pizzas-xl.jpg>
<http://www.delish.com/entertaining/g2344/vegetarian-grilled-pizza-recipes/>