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