<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/16/08/640x320/landscape-1456350345-1744144.jpg>
<http://www.popularmechanics.com/military/weapons/a19606/coming-soon-3d-printed-drones-for-the-us-army/>