<https://forum.homeone.com.au/viewtopic.php?f=31&t=100841>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.homeone.com.au/viewtopic.php?f=31&t=100841&sid=fc0cc4cf686bd1a2cb9eb37c5b4086ae>