<https://blog.nishino73.com/2023/12/04/%e3%80%90%e5%b9%b8%e3%80%91/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blog.nishino73.com/2023/12/04/%E3%80%90%E5%B9%B8%E3%80%91/>