<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eac6d1de5a5_-_03-trailscom-1.jpg>
<http://www.womansday.com/health-fitness/workout-routines/advice/a1622/3-sites-for-planning-an-outdoor-workout-107705/>