<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/480x552/54ebad740507b_-_woman-on-treadmill-xl.jpg>
<http://www.womansday.com/health-fitness/workout-routines/advice/g970/workout-mistakes/>