*1:See also https://sumita-m.hatenadiary.com/entry/2020/02/18/093316 https://sumita-m.hatenadiary.com/entry/2020/03/12/112844 https://sumita-m.hatenadiary.com/entry/2020/08/19/005316 https://sumita-m.hatenadiary.com/entry/2020/08/23/162853 https://sumita-m.hatenadiary.com/entry/2021/07/24/081204 https://sumita-m.hatenadiary.com/entry/2021/09/04/132540 https://sumita-m.hatenadiary.com/entry/2021/09/10/212832 https://sumita-m.hatenadiary.com/entry/2021/09/14/084907 https://sumita-m.hatenadiary.com/entry/2021/09/16/084138 https://sumita-m.hatenadiary.com/entry/2021/09/18/111100
*2:See also https://sumita-m.hatenadiary.com/entry/20060602/1149248358 https://sumita-m.hatenadiary.com/entry/2020/03/08/100423 https://sumita-m.hatenadiary.com/entry/2020/09/16/125832 https://sumita-m.hatenadiary.com/entry/2020/10/08/111156 https://sumita-m.hatenadiary.com/entry/2020/11/14/094652 https://sumita-m.hatenadiary.com/entry/2021/02/11/020233 https://sumita-m.hatenadiary.com/entry/2021/03/08/102851 https://sumita-m.hatenadiary.com/entry/2021/03/09/094435 https://sumita-m.hatenadiary.com/entry/2021/05/06/084544 https://sumita-m.hatenadiary.com/entry/2021/05/12/095531 https://sumita-m.hatenadiary.com/entry/2021/06/03/073508 https://sumita-m.hatenadiary.com/entry/2021/07/09/082743