<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x240/54caf9114e2cd_-_bluetooth-gadgets-01-1012-lgn.jpg>
<http://www.popularmechanics.com/technology/gadgets/reviews/g941/10-bluetooth-devices-for-everyday-life/>