<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x426/54cb2568e0e1d_-_ride-tracking-04-0114-de.jpg>
<http://www.popularmechanics.com/adventure/sports/g1397/ride-tracking-gadgets-for-data-hungry-cyclists/>