<https://processwire.com/talk/topic/26090-weekly-update-%E2%80%93%C2%A03-september-2021/#comment-217196>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://processwire.com/talk/topic/26090-weekly-update-%E2%80%93%C2%A03-september-2021/#comment-217193>