<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cadf7140a93_-_winter-machines-08-0112-lgn-78011030.jpg>
<http://www.popularmechanics.com/technology/infrastructure/g749/10-tough-machines-made-for-winter/>