<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caad4df2973_-_plastic_debris_0810-lg.jpg>
<http://www.popularmechanics.com/science/environment/a6046/how-bad-is-the-plastic-pollution-in-the-atlantic/>