<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ell.h-cdn.co/assets/cm/15/01/320x480/54a9137430f87_-_elle-07-bookcase-03-v-elv.jpg>
<http://www.elle.com/culture/art-design/how-to/g7405/bookcase-decorating-ideas/>