Anything kept for five years without a need for it can be thrown away.
Corollary
Anything that is thrown away will immediately be needed.
5年間の間必要のなかったものは捨てて良い
推論
捨てたものは何であれすぐに必要になる
月 | 火 | 水 | 木 | 金 | 土 | 日 |
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1 | ||||||
2 | 3 | 4 | 5 | 6 | 7 | 8 |
9 | 10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 | 19 | 20 | 21 | 22 |
23 | 24 | 25 | 26 | 27 | 28 | 29 |
30 |