<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x426/54cb19b90fdc6_-_stadium-tech-02-0813-lgn.jpg>
<http://www.popularmechanics.com/technology/design/g1279/10-coolest-football-stadium-technologies/>