(subclass PreservingFood Keeping) | Food.kif 184-184 | PreservingFood 是 保存 的 subclass |
(subclass CuringFood PreservingFood) | Food.kif 78-78 | CuringFood 是 PreservingFood 的 subclass |
(subclass Fermentation PreservingFood) | Food.kif 203-203 | Fermentation 是 PreservingFood 的 subclass |