<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/768x516/54feb2396ad6e-ghk-touring-a-house-xl.jpg>
<http://www.goodhousekeeping.com/life/advice/g289/etiquette-mistakes/?src=shelter_footer>