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