<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/480x552/54ebcc8bb3124_-_woman-glass-milk-xln.jpg>
<http://www.womansday.com/health-fitness/nutrition/advice/g1422/foods-that-help-you-sleep/?click=try>