<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb076db1d82_-_snow-gear-02-0113-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1064/this-year-win-the-snow-clearing-battle/>