<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/768x516/54ff2d5dc061e-ghk-winter-proof-home-thermostat-xln.jpg>
<http://www.goodhousekeeping.com/home/renovation/advice/g834/winter-proof-home/>