<https://waval.net/tag/%E3%83%91%E3%83%BC%E3%83%88%E3%83%8A%E3%83%BC/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://waval.net/tag/%E3%83%91%E3%83%BC%E3%83%88%E3%83%8A%E3%83%BC/>