'(And (>= (Car_Capacity_Range ?X) 2000) (=< (Car_Capacity_Range ?X) 4000))
(<= (Has-Constraint $X Car_Capacity_Range_C) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Constraint Car_Capacity_Range_C) (Used-In-Constraint Car_Capacity_Range Car_Capacity_Range_C)