*1:See also https://sumita-m.hatenadiary.com/entry/20100729/1280429288 https://sumita-m.hatenadiary.com/entry/20101229/1293610997 https://sumita-m.hatenadiary.com/entry/20130614/1371221716 https://sumita-m.hatenadiary.com/entry/20140728/1406522463 https://sumita-m.hatenadiary.com/entry/2019/01/26/235846 https://sumita-m.hatenadiary.com/entry/2020/02/03/234710 https://sumita-m.hatenadiary.com/entry/2020/02/05/012724 https://sumita-m.hatenadiary.com/entry/2020/03/20/120316 https://sumita-m.hatenadiary.com/entry/2020/04/09/011749 https://sumita-m.hatenadiary.com/entry/2020/04/15/012215 https://sumita-m.hatenadiary.com/entry/2020/05/27/110546 https://sumita-m.hatenadiary.com/entry/2020/06/01/094136 https://sumita-m.hatenadiary.com/entry/2020/06/05/093045 https://sumita-m.hatenadiary.com/entry/2020/06/06/091655 https://sumita-m.hatenadiary.com/entry/2020/06/09/021405 https://sumita-m.hatenadiary.com/entry/2020/06/10/085835 https://sumita-m.hatenadiary.com/entry/2020/06/13/074611 https://sumita-m.hatenadiary.com/entry/2020/06/15/004926 https://sumita-m.hatenadiary.com/entry/2020/06/16/085701 https://sumita-m.hatenadiary.com/entry/2020/06/17/012850 https://sumita-m.hatenadiary.com/entry/2020/06/18/101634 https://sumita-m.hatenadiary.com/entry/2020/06/19/083232 https://sumita-m.hatenadiary.com/entry/2020/06/22/094010 https://sumita-m.hatenadiary.com/entry/2020/06/26/012426 https://sumita-m.hatenadiary.com/entry/2020/06/27/143702 https://sumita-m.hatenadiary.com/entry/2020/06/28/220525 https://sumita-m.hatenadiary.com/entry/2020/07/03/092726 https://sumita-m.hatenadiary.com/entry/2020/12/07/101838 https://sumita-m.hatenadiary.com/entry/2021/02/13/145018 https://sumita-m.hatenadiary.com/entry/2021/03/04/105145 https://sumita-m.hatenadiary.com/entry/2021/03/10/200121 https://sumita-m.hatenadiary.com/entry/2021/03/17/023444 https://sumita-m.hatenadiary.com/entry/2021/05/10/104304 https://sumita-m.hatenadiary.com/entry/2021/05/14/094456 https://sumita-m.hatenadiary.com/entry/2021/05/16/080745
*2: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 https://sumita-m.hatenadiary.com/entry/2020/06/24/123312 https://sumita-m.hatenadiary.com/entry/2020/06/25/090450 https://sumita-m.hatenadiary.com/entry/2020/06/30/092732 https://sumita-m.hatenadiary.com/entry/2020/07/01/090159 https://sumita-m.hatenadiary.com/entry/2020/07/03/092013 https://sumita-m.hatenadiary.com/entry/2020/07/11/020349 https://sumita-m.hatenadiary.com/entry/2020/07/12/013457 https://sumita-m.hatenadiary.com/entry/2020/07/12/014545 https://sumita-m.hatenadiary.com/entry/2020/07/13/111818 https://sumita-m.hatenadiary.com/entry/2020/07/19/173034 https://sumita-m.hatenadiary.com/entry/2020/07/21/085702 https://sumita-m.hatenadiary.com/entry/2020/08/03/094413 https://sumita-m.hatenadiary.com/entry/2020/08/10/084030 https://sumita-m.hatenadiary.com/entry/2020/09/02/215451 https://sumita-m.hatenadiary.com/entry/2020/09/08/105952 https://sumita-m.hatenadiary.com/entry/2020/09/19/084305 https://sumita-m.hatenadiary.com/entry/2020/10/03/133926 https://sumita-m.hatenadiary.com/entry/2020/10/04/093914 https://sumita-m.hatenadiary.com/entry/2020/11/01/101500 https://sumita-m.hatenadiary.com/entry/2020/11/12/090255 https://sumita-m.hatenadiary.com/entry/2020/11/23/001727 https://sumita-m.hatenadiary.com/entry/2020/11/26/164204 https://sumita-m.hatenadiary.com/entry/2020/12/03/093449 https://sumita-m.hatenadiary.com/entry/2020/12/04/083453 https://sumita-m.hatenadiary.com/entry/2020/12/10/153138 https://sumita-m.hatenadiary.com/entry/2020/12/12/010734 https://sumita-m.hatenadiary.com/entry/2020/12/19/163905 https://sumita-m.hatenadiary.com/entry/2020/12/23/012739 https://sumita-m.hatenadiary.com/entry/2021/01/06/084122 https://sumita-m.hatenadiary.com/entry/2021/01/12/094125 https://sumita-m.hatenadiary.com/entry/2021/01/16/080545 https://sumita-m.hatenadiary.com/entry/2021/01/17/130116 https://sumita-m.hatenadiary.com/entry/2021/01/23/083204 https://sumita-m.hatenadiary.com/entry/2021/02/07/012605 https://sumita-m.hatenadiary.com/entry/2021/02/08/090506 https://sumita-m.hatenadiary.com/entry/2021/02/09/201018 https://sumita-m.hatenadiary.com/entry/2021/02/22/013309 https://sumita-m.hatenadiary.com/entry/2021/02/22/084222 https://sumita-m.hatenadiary.com/entry/2021/02/25/115938 https://sumita-m.hatenadiary.com/entry/2021/03/01/083624 https://sumita-m.hatenadiary.com/entry/2021/03/04/092643 https://sumita-m.hatenadiary.com/entry/2021/03/10/080822 https://sumita-m.hatenadiary.com/entry/2021/03/11/082343 https://sumita-m.hatenadiary.com/entry/2021/03/15/091912 https://sumita-m.hatenadiary.com/entry/2021/03/16/081206 https://sumita-m.hatenadiary.com/entry/2021/03/17/023444 https://sumita-m.hatenadiary.com/entry/2021/03/18/211626 https://sumita-m.hatenadiary.com/entry/2021/03/24/093436 https://sumita-m.hatenadiary.com/entry/2021/03/24/103559 https://sumita-m.hatenadiary.com/entry/2021/04/08/024140 https://sumita-m.hatenadiary.com/entry/2021/04/09/005436 https://sumita-m.hatenadiary.com/entry/2021/04/09/080859 https://sumita-m.hatenadiary.com/entry/2021/04/14/030050 https://sumita-m.hatenadiary.com/entry/2021/04/15/080832 https://sumita-m.hatenadiary.com/entry/2021/04/17/095149 https://sumita-m.hatenadiary.com/entry/2021/04/19/185510 https://sumita-m.hatenadiary.com/entry/2021/04/20/102544 https://sumita-m.hatenadiary.com/entry/2021/04/23/204923 https://sumita-m.hatenadiary.com/entry/2021/04/29/135031 https://sumita-m.hatenadiary.com/entry/2021/05/06/084544 https://sumita-m.hatenadiary.com/entry/2021/05/08/002302 https://sumita-m.hatenadiary.com/entry/2021/05/17/075834