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: would you like to narrow your search down by area?.
Example Output: 0

Example Input: System Reference: the phone number for red door cafe is 4152828283.
Original Reference: the phone number for red door cafe is 4152828283.
Example Output: 1

Example Input: System Reference: fifth floor serves lounge and is good for dinner.
Original Reference: fifth floor is good for dinner and lounge.
Example Output:
0