*1:See also https://sumita-m.hatenadiary.com/entry/2021/12/08/092126 https://sumita-m.hatenadiary.com/entry/2022/08/04/082305 https://sumita-m.hatenadiary.com/entry/2022/12/18/103125
*2:See also https://sumita-m.hatenadiary.com/entry/2020/02/03/103223 https://sumita-m.hatenadiary.com/entry/2020/02/22/103043 https://sumita-m.hatenadiary.com/entry/2020/03/04/022634 https://sumita-m.hatenadiary.com/entry/2020/03/06/095341 https://sumita-m.hatenadiary.com/entry/2020/05/26/090808 https://sumita-m.hatenadiary.com/entry/2020/06/17/083510 https://sumita-m.hatenadiary.com/entry/2020/08/25/105518 https://sumita-m.hatenadiary.com/entry/2021/02/16/003631 https://sumita-m.hatenadiary.com/entry/2022/02/26/073047 https://sumita-m.hatenadiary.com/entry/2023/01/04/222051 https://sumita-m.hatenadiary.com/entry/2023/03/15/185008
