<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb23614f1a5_-_deep-sea-drilling-1213-de.jpg>
<http://www.popularmechanics.com/science/a9853/how-scientists-drill-at-the-bottom-of-the-sea-16248335/>