<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/25/539fe0204afb4_-_cos-04-birth-control-pills-de.jpg>
<http://www.cosmopolitan.com/sex-love/advice/g3143/how-effective-is-birth-control/>