<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f958f655c27_-_spam-and-cheese-bk-del-blog.jpg>
<http://www.delish.com/food/news/a40938/burger-king-japan-spam-and-cheese-burger/>