You are given an original reference as well as a system generated reference. Your task is to judge the naturaleness of the system generated reference. If the utterance could have been produced by a native speaker output 1, else output 0.

Ex Input:
System Reference: x is a restaurant in the city centre.
Original Reference: x is a restaurant in the city centre.

Ex Output:
1


Ex Input:
System Reference: what area are you looking for?
Original Reference: asks for the area.

Ex Output:
0


Ex Input:
System Reference: the phone number for beijing restaurant is 4153338182.
Original Reference: the phone number of beijing restaurant is 4153338182.

Ex Output:

1