*1:See also https://sumita-m.hatenadiary.com/entry/2022/02/25/170157 https://sumita-m.hatenadiary.com/entry/2023/01/15/143857 https://sumita-m.hatenadiary.com/entry/2023/01/25/022056 https://sumita-m.hatenadiary.com/entry/2023/02/24/132039
*2:See also https://sumita-m.hatenadiary.com/entry/2020/10/09/110521 https://sumita-m.hatenadiary.com/entry/2023/01/04/232529
