'(=< (Safety_Beam_Load ?X) (Safety_Beam_Load_Maximum (Elevator.Safety ?X)))
(<= (Has-Constraint $X C-44) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Constraint C-44) (Used-In-Constraint Safety_Beam_Load_Maximum C-44) (Used-In-Constraint Safety_Beam_Load C-44)