<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x552/54cab9d6342c3_-_space_weapons_06_0111-xl.jpg>
<http://www.popularmechanics.com/military/weapons/g489/space-weapon-concepts-that-never-made-it/>