<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cadf6ee409e_-_winter-machines-01-0112-lgn.jpg>
<http://www.popularmechanics.com/technology/infrastructure/g749/10-tough-machines-made-for-winter/>