<https://shimbashi-grace.com/2020/03/11/new%e3%83%8d%e3%82%a4%e3%83%ab/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://shimbashi-grace.com/2020/03/11/new%E3%83%8D%E3%82%A4%E3%83%AB/>