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