<https://www.slick-designs.com/single-post/2013/12/21/EE633E09-77E5-4949-8E8F-80F4F422CE7E>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.slick-designs.com/single-post/2013/12/21/Holiday-Friday-Finds>