<https://www.decoist.com/2012-09-06/diy-brighten-up-your-bookshelf-and-reading-life/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.decoist.com/2012-09-06/diy-brighten-up-your-bookshelf-and-reading-life/>