*1:See also http://d.hatena.ne.jp/sumita-m/20140217/1392601359 http://d.hatena.ne.jp/sumita-m/20150730/1438223216 http://d.hatena.ne.jp/sumita-m/20161015/1476517356 http://d.hatena.ne.jp/sumita-m/20170321/1490117707 https://sumita-m.hatenadiary.com/entry/20170511/1494477182 https://sumita-m.hatenadiary.com/entry/2020/01/07/090924 https://sumita-m.hatenadiary.com/entry/2020/01/11/024638 https://sumita-m.hatenadiary.com/entry/2020/01/29/105001 https://sumita-m.hatenadiary.com/entry/2020/02/12/102228 https://sumita-m.hatenadiary.com/entry/2020/02/15/214804 https://sumita-m.hatenadiary.com/entry/2020/03/20/011854 https://sumita-m.hatenadiary.com/entry/2020/03/28/014141 https://sumita-m.hatenadiary.com/entry/2020/04/10/220658 https://sumita-m.hatenadiary.com/entry/2020/05/26/093420 https://sumita-m.hatenadiary.com/entry/2020/06/01/221341 https://sumita-m.hatenadiary.com/entry/2020/06/04/121802 https://sumita-m.hatenadiary.com/entry/2020/06/12/152643 https://sumita-m.hatenadiary.com/entry/2020/06/15/004926 https://sumita-m.hatenadiary.com/entry/2020/06/22/094736
