*1:See also https://sumita-m.hatenadiary.com/entry/2021/10/30/092809 https://sumita-m.hatenadiary.com/entry/2022/07/30/150729 https://sumita-m.hatenadiary.com/entry/2023/01/02/090457 https://sumita-m.hatenadiary.com/entry/2023/06/17/030049 https://sumita-m.hatenadiary.com/entry/2024/03/21/142555 https://sumita-m.hatenadiary.com/entry/2024/04/22/185143
