<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54fa0768cb736-d0b5fed08f85f37c977ca18944dce.JPG>
<http://www.delish.com/holiday-recipes/a37087/best-burger-recipes/>