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: x is a restaurant in the centre of town near x.
Original Reference: x is a restaurant near x in the city centre.
Example Output: 1

Example Input: System Reference: what price range are you comfortable with?
Original Reference: can i confirm you are looking for price range -s?.
Example Output: 1

Example Input: System Reference: may i ask near where?
Original Reference: what area do you need a hotel.
Example Output:
0