<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/980x551/54c0ffcf706ce_-_03-hbx-symbol-audio-new-stereo-console-0913-s2.jpg>
<http://www.housebeautiful.com/shopping/home-gadgets/tips/g1477/stylish-speakers-and-headphones-0913/>