<https://www.aloha-street.com/%e4%bb%8a%e9%80%b1%e3%83%8f%e3%83%af%e3%82%a4%e3%81%a7%e8%b5%b7%e3%81%8d%e3%81%9f%e3%81%93%e3%81%a89%e6%9c%882%e9%80%b1%e3%82%81%e3%80%90%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%80%91/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.aloha-street.com/article/2024/09/405338/>