<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/5489ec2a02cd9_-_rbk-butt-exercise-0912-6-xln.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g592/best-butt-workouts/>