<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6527514639_-_black-bean-and-avocado-salsa-ohff4h-xl.jpg>
<http://www.delish.com/cooking/nutrition/g585/30-healthiest-foods/?src=shelter_footer>