<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cb282933b7a_-_ski-tech-03-0214-de.jpg>
<http://www.popularmechanics.com/adventure/sports/g1428/10-ski-tech-breakthroughs-coming-to-the-mountain/>