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 me to search?.
Example Output: 1

Example Input: System Reference: he parker guest house is located near castro.
Original Reference: the hotel i found near castro is the parker guest house.
Example Output: 0

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