(=> (and (instance ?MENU BeverageMenu) (catalogItem ?X ?MENU)) (subclass ?X Beverage)) |
Dining.kif 208-212 |
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(subclass BeverageMenu Menu) | Dining.kif 203-203 | BeverageMenu 是 Menu 的 subclass |
(subclass AlcoholMenu BeverageMenu) | Dining.kif 214-214 | AlcoholMenu 是 BeverageMenu 的 subclass |