<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb19bb3b4d0_-_stadium-tech-10-0813-lgn.jpg>
<http://www.popularmechanics.com/technology/design/g1279/10-coolest-football-stadium-technologies/>