<https://haruao.com/#organization>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://haruao.com/2020/08/23/helinox-%E3%83%81%E3%82%A7%E3%82%A2%E3%83%AF%E3%83%B3%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6/>