| (subclass CitrusFruit Fruit) | Food.kif 2325-2325 | Citrus fruit is a subclass of fruit |
| (subclass LemonFruit CitrusFruit) | Food.kif 2327-2327 | Lemon fruit is a subclass of citrus fruit |
| (subclass OrangeFruit CitrusFruit) | Food.kif 2341-2341 | Orange fruit is a subclass of citrus fruit |
| (subclass Lime CitrusFruit) | Food.kif 2353-2353 | Lime is a subclass of citrus fruit |
| (subclass Grapefruit CitrusFruit) | Food.kif 2362-2362 | Grapefruit is a subclass of citrus fruit |
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