<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/320x426/548a4b27815b7_-_tip-8-team-uplgn-58428593.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1030/start-workout-fitness/>