| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1541-1541 | Meal plan is a subclass of proposition |
| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1580-1580 | Full board is a subclass of meal plan |
| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1592-1592 | Half board is a subclass of meal plan |
| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1603-1603 | European meal plan is a subclass of meal plan |
| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1623-1623 | Modified american meal plan is a subclass of meal plan |
| No TPTP formula. May not be expressible in strict first order. | Hotel.kif 1632-1632 | Meal plan modified american is a subclass of meal plan |
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