<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/320x426/54ff048fd77aa-ghk-lg-smart-refrigerator-lgn-37065500.jpg>
<http://www.goodhousekeeping.com/electronics/g555/connected-home-tech-2012/>