<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cae7b09ee5c_-_carbon-space-02-0412-de.jpg>
<http://www.popularmechanics.com/space/deep-space/g812/carbon-in-the-sky-with-diamonds-8185588/>