<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x551/54ff41e103fea-1-workout-in-morning-s2.jpg>
<http://www.goodhousekeeping.com/health/fitness/g1651/bad-gym-advice/>