(<= (Has-Parameter-Slot $X Counterweight_Bottom_Reference) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Parameter-Slot Counterweight_Bottom_Reference) (Inherited-Facet-Value Slot-Value-Type Elevator Counterweight_Bottom_Reference Real-Number) (Inherited-Facet-Value Slot-Cardinality Elevator Counterweight_Bottom_Reference 1)