<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caf0a7a8a10_-_drilling-in-alaska-01-0712-de.jpg>
<http://www.popularmechanics.com/science/energy/a7938/everything-you-need-to-know-about-shell-oil-and-arctic-offshore-drilling-in-alaska-10720112/>