<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cad531b4678_-_force-on-force-02-1111-mdn.jpg>
<http://www.popularmechanics.com/military/weapons/a7302/a-day-of-intense-force-on-force-handgun-training/>