<https://adcocorp.com/2022/07/12/%e9%9d%92%e6%98%a5%e6%99%82%e3%81%ae%e7%90%86%e6%83%b3%e3%81%ae%e7%9e%ac%e9%96%93%e3%80%82%e3%80%82%e3%80%82/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://adcocorp.com/2022/07/12/%E9%9D%92%E6%98%A5%E6%99%82%E3%81%AE%E7%90%86%E6%83%B3%E3%81%AE%E7%9E%AC%E9%96%93%E3%80%82%E3%80%82%E3%80%82/>