<https://www.nobunabila.com/post/\u3042\u3051\u307E\u3057\u3066\u304A\u3081\u3067\u3068\u3046\u3054\u3056\u3044\u307E\u3059-2020>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.nobunabila.com/post/%E3%81%82%E3%81%91%E3%81%BE%E3%81%97%E3%81%A6%E3%81%8A%E3%82%81%E3%81%A7%E3%81%A8%E3%81%86%E3%81%94%E3%81%96%E3%81%84%E3%81%BE%E3%81%99-2020>