<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/320x426/54cfd58d75686_-_breakthrough-products-07-1012-de.jpg>
<http://www.popularmechanics.com/technology/gadgets/g969/the-top-10-tech-breakthroughs-of-2012/?click=main_sr>