<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cb2dd93b774_-_bike-hacks-03-0314-de.jpg>
<http://www.popularmechanics.com/adventure/sports/g1453/6-smart-ways-to-hack-your-bike/>