<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfc8b204e02_-_cont-book-630-85199365.jpg>
<http://www.popularmechanics.com/military/a5697/debunking-911-myths-sources/>