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: unfortunately 0 restaurants serve cambodian are expensive.
Original Reference: there are no expensive restaurant -s in that price range that serve cambodian food.

SOLUTION: 0

PROBLEM: System Reference: hakkasan, is in the are of financial district or hayes valley.
Original Reference: hakkasan is in financial district or hayes valley.

SOLUTION: 0

PROBLEM: System Reference: what price range are you comfortable with?
Original Reference: can i help you find a restaurant by price range?.

SOLUTION:
1