TASK DEFINITION: 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.
PROBLEM: System Reference: x is an expensive restaurant near x and x.
Original Reference: x is a restaurant near x and x in the expensive price range.

SOLUTION: 1

PROBLEM: System Reference: there are 239 restaurants in any price range.
Original Reference: there are 239 restaurant -s if you do not care about the price.

SOLUTION: 1

PROBLEM: System Reference: the name of the restaurant is range.
Original Reference: range is a good restaurant.

SOLUTION:
1