<https://charles-dayo.com/2022/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://charles-dayo.com/2022/08/25/8-22%E6%B0%B4%E3%80%80%E4%BB%8A%E6%99%A9%E3%81%AF%E6%97%A5%E9%A0%83%E3%81%AE%E6%84%9F%E8%AC%9D%E3%82%92%E8%BE%BC%E3%82%81%E3%81%A6%E3%80%81%E3%82%B7%E3%83%A3%E3%83%AB%E3%83%AB%E3%81%AF%E3%83%96/>