*1:See also https://sumita-m.hatenadiary.com/entry/2020/01/30/093526 https://sumita-m.hatenadiary.com/entry/2021/02/26/083349 https://sumita-m.hatenadiary.com/entry/2021/08/27/095111 https://sumita-m.hatenadiary.com/entry/2022/02/14/014435 https://sumita-m.hatenadiary.com/entry/2022/04/20/094420 https://sumita-m.hatenadiary.com/entry/2022/07/05/091304
