やばいかも
https://ja.m.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC%E8%87%AA%E6%B2%BB%E4%BD%93%E5%8A%B4%E5%83%8D%E7%B5%84%E5%90%88%E7%B7%8F%E9%80%A3%E5%90%88