'(= (Platform_To_Hoistway_Left ?X) (- (Opening_To_Hoistway_Left ?X) (Car_Return_Left ?X)))
(<= (Has-Constraint $X Platform_To_Hoistway_Left_C) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Constraint Platform_To_Hoistway_Left_C) (Used-In-Constraint Car_Return_Left Platform_To_Hoistway_Left_C) (Used-In-Constraint Platform_To_Hoistway_Left Platform_To_Hoistway_Left_C) (Used-In-Constraint Opening_To_Hoistway_Left Platform_To_Hoistway_Left_C)