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.

Input: Consider Input: System Reference: may i ask near where?
Original Reference: what area of the city are you looking for.

Output: 0


Input: Consider Input: System Reference: may i ask near where?
Original Reference: i did not understand. what part of the city would you like me to search?.

Output: 0


Input: Consider Input: System Reference: what price range are you comfortable with?
Original Reference: what price range are you looking for.
Output: 1