<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/480x360/548a4b2a12ca4_-_tip-9-schedulelgn-51004453.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1030/start-workout-fitness/>