<https://whitneyhess.com/blog/2011/04/23/youre-not-a-user-experience-designer-if/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://whitneyhess.com/blog/2011/04/23/youre-not-a-user-experience-designer-if/?replytocom=7282>