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