<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/08/54eaa061d61e6_-_05-wd1109-healthy-home-2.jpg>
<http://www.womansday.com/home/advice/a1085/give-your-home-a-healthy-makeover-100242/>