<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/320x240/54cfc7ea6f7c1_-_useless-robots-4-0709-lgn.jpg>
<http://www.popularmechanics.com/technology/robots/g242/4325054/>