<https://gifu-newface.com/%e5%a4%89%e3%82%8f%e3%82%89%e3%82%93%e3%81%a8%e6%80%9d%e3%81%a3%e3%81%a8%e3%81%a3%e3%81%9f%e3%82%82%e3%82%93%ef%bc%9f/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://gifu-newface.com/%E5%A4%89%E3%82%8F%E3%82%89%E3%82%93%E3%81%A8%E6%80%9D%E3%81%A3%E3%81%A8%E3%81%A3%E3%81%9F%E3%82%82%E3%82%93%EF%BC%9F/>