<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/15/35/980x1070/gallery-1440455137-6-ranch-pizza-with-white-cheddar-and-prosciutto.JPG>
<http://www.delish.com/cooking/g269/homemade-pizza-recipes/?ocid=xnetr2-1>