<https://neolifedesign.com/%e4%bb%8a%e9%80%b1%e3%81%af%e7%84%a1%e9%a7%84%e3%81%aa%e9%80%9a%e5%8b%a4%e3%82%82%e8%8b%a6%e3%81%98%e3%82%83%e3%81%aa%e3%81%84/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://neolifedesign.com/%E4%BB%8A%E9%80%B1%E3%81%AF%E7%84%A1%E9%A7%84%E3%81%AA%E9%80%9A%E5%8B%A4%E3%82%82%E8%8B%A6%E3%81%98%E3%82%83%E3%81%AA%E3%81%84/>