<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/160x160/54f649be1021c_-_9-separating-egg-yolk-mslo1112-lg-42399401.jpg>
<http://www.delish.com/holiday-recipes/christmas/g370/tips-baking-cookies/>