<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/320x426/54f601fe2cd7d_-_01-wd-hous-numbers-1-one-lgn-28919737.jpg>
<http://www.womansday.com/home/decorating/g1572/house-numbers/>