<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/160x123/550061b1afa7f-ghk-armstrong-stratamax-md.jpg>
<http://www.goodhousekeeping.com/home-products/flooring-product-reviews/g2300/flooring-products/>