<https://column.entamejin.com/surpervisor/%e5%88%a5%e5%ba%9c%e3%80%80%e5%bd%a9#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://column.entamejin.com/surpervisor/%E5%88%A5%E5%BA%9C%E3%80%80%E5%BD%A9>