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: may i help you further?
Original Reference: what do you mean.
[EX A]: 1

[EX Q]: System Reference: the name of the restaurant is mangia tutti ristorante.
Original Reference: mangia tutti ristorante is a nice restaurant.
[EX A]: 1

[EX Q]: System Reference: please confirm you are looking for the inexpensive range?
Original Reference: please confirm you are looking for something in the inexpensive price range.
[EX A]:
0