<https://pyra-handheld.com/boards/threads/trying-to-find-a-fair-solution.72087/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://pyra-handheld.com/boards/threads/trying-to-find-a-fair-solution.72087/page-20#post-1235206>