<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x411/54cb3d1ce5813_-_frozen-lagoon-de.jpg>
<http://www.popularmechanics.com/science/environment/a10803/gigantic-crystal-lagoon-16931996/>