<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/320x320/54f653d6d21c0_-_hot-chocolate-etching-latte-art-de.jpg>
<http://www.delish.com/food/g597/impressive-latte-art/>