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.

Q: System Reference: source 's address is 11 division street.
Original Reference: source is located at 11 division street.

A: 1
****
Q: System Reference: what area are you looking for?
Original Reference: where is the requested area where the hotel is.

A: 0
****
Q: System Reference: may i help you further?
Original Reference: how else may i help you?.

A:
1
****