<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/480x360/54cfd4a940e27_-_firepits-04-1013-lgn.jpg>
<http://www.popularmechanics.com/adventure/outdoors/g1331/5-portable-fire-pits-for-a-campfire-on-the-go/>