<https://forum.aslsweden.com/index.php?/topic/11139-alphaspel-rean-ht-23/#comment-36437>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.aslsweden.com/index.php?/topic/11139-alphaspel-rean-ht-23/>