<https://blogs.sas.com/content/graphicallyspeaking/2017/12/04/little-things-go-long-way/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blogs.sas.com/content/graphicallyspeaking/2017/12/04/little-things-go-long-way/>