| (subclass HoofedMammal Mammal) | Merge.kif 14612-14612 | |
| (subclass Antelope HoofedMammal) | Mid-level-ontology.kif 20073-20073 | |
| (subclass Buffalo HoofedMammal) | Mid-level-ontology.kif 20077-20077 | |
| (subclass Horse HoofedMammal) | Mid-level-ontology.kif 20143-20143 | |
| (subclass Pig HoofedMammal) | Mid-level-ontology.kif 20147-20147 | |
| (subclass Donkey HoofedMammal) | Mid-level-ontology.kif 20150-20150 | |
| (subclass Mule HoofedMammal) | Mid-level-ontology.kif 20158-20158 | |
| (subclass Sheep HoofedMammal) | Mid-level-ontology.kif 20177-20177 | |
| (subclass Cattle HoofedMammal) | Mid-level-ontology.kif 20191-20191 | |
| (subclass Goat HoofedMammal) | Economy.kif 4905-4905 | |
| (subclass WaterBuffalo HoofedMammal) | Economy.kif 4907-4907 | |
| (subclass Reindeer HoofedMammal) | Economy.kif 4909-4909 | |
| (subclass Deer HoofedMammal) | Economy.kif 4911-4911 |
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