<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/16/37/640x320/landscape-1474066209-delish-lemon-chicken-and-potatoes-3.jpg>
<http://www.delish.com/cooking/videos/a49203/lemon-chicken-potatoes-video/>