<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/51/980x1306/548f2a99c2170_-_rbk-perfect-omelet-0114-6-s2.jpg>
<http://www.redbookmag.com/food-recipes/recipes/g2060/how-to-make-the-perfect-omelet/>