*1:See also https://sumita-m.hatenadiary.com/entry/2020/01/07/090230 https://sumita-m.hatenadiary.com/entry/2020/02/05/083403 https://sumita-m.hatenadiary.com/entry/2020/02/23/081342 https://sumita-m.hatenadiary.com/entry/2020/03/10/085939 https://sumita-m.hatenadiary.com/entry/2020/06/04/082300 https://sumita-m.hatenadiary.com/entry/2020/06/13/082409 https://sumita-m.hatenadiary.com/entry/2020/07/21/000200 https://sumita-m.hatenadiary.com/entry/2020/08/25/123127 https://sumita-m.hatenadiary.com/entry/2020/10/17/134909 https://sumita-m.hatenadiary.com/entry/2020/11/09/135355 https://sumita-m.hatenadiary.com/entry/2020/12/06/024052 https://sumita-m.hatenadiary.com/entry/2020/12/24/124957 https://sumita-m.hatenadiary.com/entry/2021/01/02/105813 https://sumita-m.hatenadiary.com/entry/2021/01/14/112446 https://sumita-m.hatenadiary.com/entry/2021/01/29/003736 https://sumita-m.hatenadiary.com/entry/2021/02/01/020032 https://sumita-m.hatenadiary.com/entry/2021/02/12/122944 https://sumita-m.hatenadiary.com/entry/2021/02/18/163130 https://sumita-m.hatenadiary.com/entry/2021/02/23/014545 https://sumita-m.hatenadiary.com/entry/2021/03/04/102021 https://sumita-m.hatenadiary.com/entry/2021/03/12/023357 https://sumita-m.hatenadiary.com/entry/2021/04/05/022721 https://sumita-m.hatenadiary.com/entry/2021/05/03/100057
