<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1470/54ff1e240bda7-ghk-monueal-smart-plant-monitor-s2.jpg>
<http://www.goodhousekeeping.com/electronics/g783/ces-connected-home-tech-2013/>