<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x1470/54ebcc8c3316e_-_rice-cakes-s2.jpg>
<http://www.womansday.com/health-fitness/nutrition/advice/g1422/foods-that-help-you-sleep/?click=try>