<https://cobblehillblog.com/2008/02/29/p-s-29-visits-whitmans-old-paper/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://cobblehillblog.com/2008/02/29/p-s-29-visits-whitmans-old-paper/>