<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cae7f49de12_-_navy-bots-05-0412-de.jpg>
<http://www.popularmechanics.com/military/g832/inside-the-navys-new-autonomous-robotics-lab/>