<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x360/54ff049061341-ghk-samsung-washing-machine-lgn.jpg>
<http://www.goodhousekeeping.com/electronics/g555/connected-home-tech-2012/>