<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/768x516/54cac88d5f561_-_energy-crisis-05-0611-xln.jpg>
<http://www.popularmechanics.com/science/energy/g569/10-fixes-for-the-new-energy-crisis/>