<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb1e49c5c79_-_titan-03-1013-de.jpg>
<http://www.popularmechanics.com/science/environment/a9551/the-best-pictures-ever-taken-of-titans-great-lakes-16078885/?click=pm_latest>