<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb2828c8f6c_-_ski-tech-02-0214-lgn.jpg>
<http://www.popularmechanics.com/adventure/sports/g1428/10-ski-tech-breakthroughs-coming-to-the-mountain/>