<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/480x276/54cfc7ea137bd_-_useless-robots-2-0709-lgn.jpg>
<http://www.popularmechanics.com/technology/robots/g242/4325054/>