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