'(And (>= (Counterweight_Buffer_Blocking_Height ?X) 0.0) (=< (Counterweight_Buffer_Blocking_Height ?X) 120.0))
(<= (Has-Constraint $X C-15) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Constraint C-15) (Used-In-Constraint Counterweight_Buffer_Blocking_Height C-15)