<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f642f82c2e9_-_ham-avocado-sandwich-mdn.jpg>
<http://www.delish.com/entertaining/g164/gourmet-picnic-recipes/?src=shelter_footer>