<https://www.sponichi.co.jp/baseball/news/2021/03/12/kiji/20210311s00001173582000c.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://m.idolreport.jp/baseball/news/2021/03/12/kiji/20210311s00001173582000c.html>