<https://chikuho-c.net/author/chikuhoc/#author>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://chikuho-c.net/events/event/10%E6%9C%88%E7%AC%AC%E4%BA%8C%E4%BE%8B%E4%BC%9A%E3%80%80%E7%B5%8C%E5%96%B6%E6%96%87%E5%8C%96%E8%AC%9B%E5%BA%A7/>