<https://s-lessons.com/blog/#organization>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://s-lessons.com/blog/%E9%9D%9E%E8%AA%8D%E7%9F%A5%E8%83%BD%E5%8A%9B%E3%81%A3%E3%81%A6%E4%BD%95%EF%BC%9F/>