<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb424dd69b3_-_artificial-world-0714-de.jpg>
<http://www.popularmechanics.com/space/deep-space/a10946/could-we-ever-build-an-artificial-world-17025054/>