(=> (and (instance ?MENU BeverageMenu) (catalogItem ?X ?MENU)) (subclass ?X Beverage)) |
Dining.kif 208-212 |
|
(subclass BeverageMenu Menu) | Dining.kif 203-203 | Drinks menu is a subclass of menu |
(subclass AlcoholMenu BeverageMenu) | Dining.kif 214-214 | Cocktail menu is a subclass of drinks menu |