(subclass Grain FoodFromPlant) | Economy.kif 4149-4149 | Grain is a subclass of food from plant |
(subclass CerealGrain Grain) | Economy.kif 4027-4027 | Cereal grain is a subclass of grain |
(subclass Malt Grain) | Economy.kif 4161-4161 | Malt is a subclass of grain |