<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x320/54c8ad88b9553_-_fire-tech-lede-02-de.jpg>
<http://www.popularmechanics.com/science/environment/g84/4257808/>