<https://mare-e.com/newtopics/%e7%be%8e%e8%84%9a%e7%be%8e%e5%b0%bb26/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mare-e.com/newtopics/%E7%BE%8E%E8%84%9A%E7%BE%8E%E5%B0%BB26/>