<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x360/54ff0034a5993-ghk-clean-cubes-8av4tp-lgn.jpg>
<http://www.goodhousekeeping.com/home-products/g454/new-cleaning-products-for-2012/?src=shelter_footer>