11月28日。
イチョウ*1。千葉工業大学*2。習志野市津田沼２丁目。
*1:See also https://sumita-m.hatenadiary.com/entry/20100311/1268237242 https://sumita-m.hatenadiary.com/entry/2020/12/03/093449 https://sumita-m.hatenadiary.com/entry/2020/12/23/124553 https://sumita-m.hatenadiary.com/entry/2020/12/27/083005 https://sumita-m.hatenadiary.com/entry/2021/11/18/144654 https://sumita-m.hatenadiary.com/entry/2021/11/29/185003
*2:See also https://sumita-m.hatenadiary.com/entry/20140820/1408501641 https://sumita-m.hatenadiary.com/entry/2020/08/25/104513 https://sumita-m.hatenadiary.com/entry/2021/10/09/123758 https://sumita-m.hatenadiary.com/entry/2021/11/20/155014