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: what area specifically are you interested in?.
Example Output: 0

Example Input: System Reference: what price range are you comfortable with?
Original Reference: what price range are you considering?.
Example Output: 1

Example Input: System Reference: casa melissa postcode is 94133.
Original Reference: casa melissa 's post code is 94133.
Example Output:
0