<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x426/54cb06006f4b2_-_2013-outdoor-tech-03-0113-de.jpg>
<http://www.popularmechanics.com/adventure/outdoors/g1059/top-hiking-biking-camping-tech-for-2013/>