<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1329/54ff06bea21b6-ghk-skip-upright-rows-3-s2.jpg>
<http://www.goodhousekeeping.com/health/fitness/g596/dangerous-exercises/?src=shelter_footer>