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.

Example Input: System Reference: what area are you looking for?
Original Reference: this is the hotel information system. you can ask for hotel -s by price range, whether they accepts card -s or have internet.
Example Output: 0

Example Input: System Reference: thank you the grand hyatt san francisco allows dogs.
Original Reference: the grand hyatt san francisco allows dogs.
Example Output: 0

Example Input: System Reference: may i help you further?
Original Reference: may i help you further?.
Example Output:
1