<https://mahoukakoukounorettousei.wiki/wiki/%e4%ba%94%e8%bc%aa%e5%ae%b6#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mahoukakoukounorettousei.wiki/wiki/%E4%BA%94%E8%BC%AA%E5%AE%B6>