<https://jyf.or.jp/author/yukigassen-japan/#author>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Person>
<https://jyf.or.jp/2017/09/27/dh%EF%BC%88%E4%B8%80%E8%88%AC%E3%83%BB%E9%95%B7%E9%87%8E%EF%BC%89/%EF%BD%84%EF%BD%88/>