<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x426/54cb283574710_-_winter-olympic-tech-05-0214-de.jpg>
<http://www.popularmechanics.com/adventure/sports/g1433/skis-skates-and-sleds-the-gold-medal-tech-of-the-winter-olympics/>