<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/480x360/54cfd48b63d19_-_clever-energy-05-0313-de.jpg>
<http://www.popularmechanics.com/science/energy/g1119/9-clever-energy-projects-from-arpa-e-summit-2013/>