<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54caf0538c08b_-_olympics-tech-04-0712-lgn.jpg>
<http://www.popularmechanics.com/adventure/sports/g892/olympic-greens-londons-eco-friendly-sports-tech-10984164/>