<https://machida-petcl.com/blog/#/schema/person/96423825fd4c2ef3f0b56257a2f559dd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://machida-petcl.com/blog/8%E6%9C%88%E3%81%AE%E3%82%AA%E3%83%9A%E5%AE%9F%E7%B8%BE/>