*1:See also https://sumita-m.hatenadiary.com/entry/2022/03/10/090419 https://sumita-m.hatenadiary.com/entry/2022/03/22/085819 https://sumita-m.hatenadiary.com/entry/2024/03/08/170844 https://sumita-m.hatenadiary.com/entry/2024/03/20/094340 https://sumita-m.hatenadiary.com/entry/2024/04/22/094254 https://sumita-m.hatenadiary.com/entry/2024/06/11/102542 https://sumita-m.hatenadiary.com/entry/2024/07/02/214744
