<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54ff0490e9a87-schlagelock-connectedhome-xl.jpg>
<http://www.goodhousekeeping.com/electronics/g555/connected-home-tech-2012/>