works:

"OR"
photo: FUKUNAGA Kazuo

"memorandum"
| 11:30 am | 1:30 pm | 3:30 pm | |
|---|---|---|---|
| May 22 (Sat.) | pH | S/N | OR |
| May 23 (Sun.) | memorandum | Voyage | pH |
| May 29 (Sat.) | S/N | OR | memorandum |
| May 30 (Sun.) | Voyage | pH | S/N |
| June 5 (Sat.) | OR | memorandum | Voyage |
| June 6 (Sun.) | pH | S/N | OR |
| June 12 (Sat.) | memorandum | Voyage | pH |
| June 13 (Sun.) | S/N | OR | memorandum |
| June 19 (Sat.) | Voyage | pH | S/N |
| June 20 (Sun.) | OR | memorandum | Voyage |
| June 26 (Sat.) | pH | S/N | OR |
| June 27 (Sun.) | memorandum | Voyage | pH |
| July 3 (Sat.) | S/N | OR | memorandum |
| July 4 (Sun.) | Voyage | pH | S/N |