*1:See also http://d.hatena.ne.jp/sumita-m/20130607/1370563792 http://d.hatena.ne.jp/sumita-m/20140217/1392601359 http://d.hatena.ne.jp/sumita-m/20150731/1438350631 http://d.hatena.ne.jp/sumita-m/20160731/1469923327 http://d.hatena.ne.jp/sumita-m/20160830/1472528660 http://d.hatena.ne.jp/sumita-m/20160924/1474733349 http://d.hatena.ne.jp/sumita-m/20161011/1476112393 http://d.hatena.ne.jp/sumita-m/20161018/1476775328 https://sumita-m.hatenadiary.com/entry/20170420/1492710355 https://sumita-m.hatenadiary.com/entry/2019/07/27/184439 https://sumita-m.hatenadiary.com/entry/2019/07/30/081016 https://sumita-m.hatenadiary.com/entry/2019/08/13/104258 https://sumita-m.hatenadiary.com/entry/2020/03/09/144543 https://sumita-m.hatenadiary.com/entry/2020/03/14/085847 https://sumita-m.hatenadiary.com/entry/2020/04/08/150902
