<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/160x160/54f645112e0e0_-_white-house-socks-cat-del1212-lg.jpg>
<http://www.delish.com/holiday-recipes/christmas/g204/gingerbread-famous-buildings/>