<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54fe9f828f0b8-green-cleaning-supplies-0410-md.jpg>
<http://www.goodhousekeeping.com/home/a18573/ways-to-go-green/?src=shelter_footer>