<https://www.kurioneblog.com/tag/%E9%81%8B%E3%81%AE%E4%B8%8A%E3%81%92%E6%96%B9/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.kurioneblog.com/tag/%E9%81%8B%E3%81%AE%E4%B8%8A%E3%81%92%E6%96%B9/>