<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://mac.h-cdn.co/assets/cm/14/49/548226ece209f_-_nuvaring-0611-2-xl.jpg>
<http://www.marieclaire.com/health-fitness/news/a6152/birth-control-safety/?click=rel>