*1:See also https://sumita-m.hatenadiary.com/entry/2021/09/28/003131 https://sumita-m.hatenadiary.com/entry/2021/10/11/105350 https://sumita-m.hatenadiary.com/entry/2021/10/19/103231 https://sumita-m.hatenadiary.com/entry/2022/07/07/084436 https://sumita-m.hatenadiary.com/entry/2022/10/13/112408 https://sumita-m.hatenadiary.com/entry/2022/10/19/032008
