<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x646/54ebc65c9e912_-_power-strip-s2.jpg>
<http://www.womansday.com/life/work-money/tips/g1352/how-to-lower-electric-bill/>