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.

[EX Q]: System Reference: what area are you looking for?
Original Reference: what area of the city are you looking for?.
[EX A]: 0

[EX Q]: System Reference: may i help you further?
Original Reference: can i help you with something else?.
[EX A]: 1

[EX Q]: System Reference: what area are you looking for?
Original Reference: what area would you like to dine?.
[EX A]:
0