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 would you like the restaurant to be in?
Original Reference: what area do you want?.
Example Output: 1

Example Input: System Reference: what area are you looking for?
Original Reference: what area for the hotel?.
Example Output: 0

Example Input: System Reference: great eastern restaurant, is good for lunch.
Original Reference: i know of a great eastern restaurant that is good for lunch.
Example Output:
1