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: what price range are you comfortable with?
Original Reference: may i ask what 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 the price.

SOLUTION: 1

PROBLEM: System Reference: the intercontinental san francisco is in the pricey price range.
Original Reference: the intercontinental san francisco is a pricey hotel.

SOLUTION:
0