<https://invisioncommunity.com/forums/topic/376448-ipb-breaks-the-one-document-per-url-paradigm/#comment-2354441>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://invisioncommunity.com/forums/topic/376448-ipb-breaks-the-one-document-per-url-paradigm/>