<https://notomi-shinbashi.com/blog/post-5003/5003/attachment/f5000c12-b19a-4c07-9097-f685d4943ca9/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://notomi-shinbashi.com/blog/post-5003/5003/attachment/f5000c12-b19a-4c07-9097-f685d4943ca9/>