<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x308/54ca9ce50fd67_-_atomicenergylabtoy_470-94712661.jpg>
<http://www.popularmechanics.com/technology/g264/4347051/>