<https://noukatsu-shimbun.jp/2022/06/27/%e3%80%90%e8%84%b3%e3%83%88%e3%83%ac%e5%95%8f%e9%a1%8c-j-07%e3%80%91%e6%bc%a2%e5%ad%97%e3%83%91%e3%82%ba%e3%83%ab/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://noukatsu-shimbun.jp/2022/06/27/%E3%80%90%E8%84%B3%E3%83%88%E3%83%AC%E5%95%8F%E9%A1%8C-j-07%E3%80%91%E6%BC%A2%E5%AD%97%E3%83%91%E3%82%BA%E3%83%AB/>