<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x360/55002748a87b2-butt-workout-0401-lgn.jpg>
<http://www.goodhousekeeping.com/health/fitness/g1772/butt-exercises-apr01/?click=tips-healthy>