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.
One example: System Reference: x is a reasonably priced fast food restaurant down by river cheap.
Original Reference: x is a cheap fastfood restaurant located near the riverside.
Solution is here: 1
Explanation: The system reference could have been uttered by a native speaker.

Now, solve this: System Reference: butterfly serves vietnamese food at a expensive price range.
Original Reference: butterfly is an expensive vietnamese restaurant.
Solution:
1