<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6424eb1fb9_-_bacon-burgers-brioche-buns-fw1010-xl-xl.jpg>
<http://www.delish.com/holiday-recipes/g2521/4th-of-july-cookout-burger-recipes/?src=shelter_footer>