'(= (Platform_To_Hoistway_Front ?X) (+ (Door_Space (Elevator.Door ?X)) (Platform_Running_Clearance ?X)))
(<= (Has-Constraint $X Platform_To_Hoistway_Front_C) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Constraint Platform_To_Hoistway_Front_C) (Used-In-Constraint Door_Space Platform_To_Hoistway_Front_C) (Used-In-Constraint Platform_To_Hoistway_Front Platform_To_Hoistway_Front_C) (Used-In-Constraint Platform_Running_Clearance Platform_To_Hoistway_Front_C)