<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1148/54ff185842fa8-ghk-hollywood-workout-s2.jpg>
<http://www.goodhousekeeping.com/electronics/video-game-reviews/g706/fitness-video-games/>