<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54ca8b96e253c_-_supercarrier-470-p2-0709.jpg>
<http://www.popularmechanics.com/military/navy-ships/a4330/4321136/>