<https://www.geeklog.net/article.php/20020409114903555>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.geeklog.net/article.php?story=20020409114903555&cmt_pid=945&cmt_type=article&mode=nested&order=ASC&cpage=1>