| (subclass WheatGrain CerealGrain) | Economy.kif 4051-4051 | |
| (subclass CommonWheatGrain WheatGrain) | Economy.kif 4059-4059 | |
| (subclass DurumWheatGrain WheatGrain) | Economy.kif 4071-4071 | |
| (subclass EmmerWheatGrain WheatGrain) | Economy.kif 4081-4081 | |
| (subclass EinkornWheatGrain WheatGrain) | Economy.kif 4091-4091 | |
| (subclass SpeltWheatGrain WheatGrain) | Economy.kif 4101-4101 |
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