<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/25/539fca21d0e61_-_cos-10-running-treadmill-exercise-de.jpg>
<http://www.cosmopolitan.com/health-fitness/news/a11434/rest-should-be-part-of-workout/?click=cos_latest>