<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/160x160/54f64f354e88d_-_chicago-cubs-wrigley-field-hotdog-lg-lg.jpg>
<http://www.delish.com/food/news/g518/food-news-4-8-2013/>