<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://clv.h-cdn.co/assets/cm/15/09/980x1305/54eb6f4e29aed_-_04-natural-instincts-library-0614-wai28l-s2.jpg>
<http://www.countryliving.com/home-design/decorating-ideas/advice/g1531/bookshelf-ideas/>