<https://chinocra.com/list-info2020/%e3%82%ac%e3%83%a9%e3%82%b9%e3%82%ad%e3%83%a3%e3%83%93%e3%83%b3/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://chinocra.com/list-info2020/%E3%82%AC%E3%83%A9%E3%82%B9%E3%82%AD%E3%83%A3%E3%83%93%E3%83%B3/>