<https://chokyo-keiba.net/blog/2013-nhk\u30DE\u30A4\u30EB\u30AB\u30C3\u30D7/#person>
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<https://chokyo-keiba.net/blog/2013-nhk%E3%83%9E%E3%82%A4%E3%83%AB%E3%82%AB%E3%83%83%E3%83%97/>