<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cadd83ca8aa_-_e-bikes-04-1211-lgn.jpg>
<http://www.popularmechanics.com/technology/gadgets/reviews/g713/how-smartphones-are-becoming-the-brains-of-e-bikes/>