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 type of food would you like to eat?
Original Reference: can you tell me what type of food you are interested in?.
Example Output: 1

Example Input: System Reference: i am sorry. i did not find any expensive restaurants in outer richmond.
Original Reference: there are no restaurant -s in the outer richmond area in the expensive price range.
Example Output: 0

Example Input: System Reference: there are 11 restaurants that serve american food near nob hill.
Original Reference: there are 11 restaurant -s that serve american food near nob hill.
Example Output:
1