<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ff9d80e00f5-dingy-carpet-smell-de.jpg>
<http://www.goodhousekeeping.com/home/cleaning/tips/a22053/deodorize-your-house/?src=shelter_footer>