<https://forum.homeone.com.au/viewtopic.php?f=31&t=78620>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.homeone.com.au/viewtopic.php?f=31&t=78620&sid=71548e8dec75d0cf44b8cf47a7145e26&start=500>