<https://saori-yufu.net/2020/09/20/#listItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://saori-yufu.net/2020/09/20/%E6%A0%84%E9%A4%8A%E3%82%B3%E3%83%A9%E3%83%A010%E3%80%90%E7%97%A9%E3%81%9B%E3%82%84%E3%81%99%E3%81%84%E4%BD%93%E8%B3%AA%E3%81%AB%E3%81%AF%E2%97%8B%E2%97%8B%E3%81%8C%E6%9C%9D%E9%A3%9F%E5%BF%85%E9%A0%88/>