<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/160x160/54f6427fda58a_-_chicken-tostadas-with-avocado-sauce-recipe-0810-iwitns-xl.jpg>
<http://www.delish.com/cooking/g160/easy-avocado-recipes/>