<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caa3eb6e581_-_diy_3d_01_0710-md.jpg>
<http://www.popularmechanics.com/technology/gadgets/how-to/a5841/how-to-make-a-3d-camera/>