<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ell.h-cdn.co/assets/cm/15/01/640x426/54a91361d57f9_-_elle-04-bookcase-10-h-elh.jpg>
<http://www.elle.com/culture/art-design/how-to/g7405/bookcase-decorating-ideas/>