<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ffc2ca85fb0-second20half.jpg>
<http://www.goodhousekeeping.com/institute/a23680/easy-diy-lightswitch-update/?link=emb&dom=yah_life&src=syn&con=blog_goodhousekeeping&mag=ghk>