<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/768x516/54cad2216181c_-_bta-products-01-1011-xln-6317221.jpg>
<http://www.popularmechanics.com/technology/gadgets/reviews/g627/the-10-most-innovative-tech-products-of-2011/>