<https://gekkai3.com/blog/#listItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://gekkai3.com/blog/%E4%BB%8A%E5%B9%B4%E3%81%A7%EF%BC%91%EF%BC%90%E6%AD%B3%EF%BC%81%E5%A4%8F%E3%81%AB%E5%90%91%E3%81%91%E3%81%A6%E8%A1%8C%E3%81%86%EF%BC%91%EF%BC%90%E5%9B%9E%E7%9B%AE%E3%81%AE%E4%BD%9C%E6%A5%AD%E3%81%AB/>