<https://www.youzitsu.com/2022/08/you-zitsu-ln-2nd-year-vol-7-bab-5-part_24.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.youzitsu.com/2022/08/you-zitsu-ln-2nd-year-vol-7-bab-5-part_24.html>