*1:See also https://sumita-m.hatenadiary.com/entry/2021/11/12/123943 https://sumita-m.hatenadiary.com/entry/2023/05/10/150624 https://sumita-m.hatenadiary.com/entry/2023/10/21/110103 https://sumita-m.hatenadiary.com/entry/2023/11/08/094203 https://sumita-m.hatenadiary.com/entry/2024/05/06/080321 https://sumita-m.hatenadiary.com/entry/2024/07/01/110727 https://sumita-m.hatenadiary.com/entry/2024/07/14/212655
