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 part of the city are you looking at.
Example Output: 0

Example Input: System Reference: may i help you further?
Original Reference: do you need any more assistance?.
Example Output: 1

Example Input: System Reference: x is a restaurant in the centre of town located near x and x.
Original Reference: x is a restaurant in the city centre, located near x and x .
Example Output:
1