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: x is a french and continental style restaurant located the x.
Original Reference: x is a french and continental restaurant near x.

SOLUTION: 1

PROBLEM: System Reference: i am sorry but there is no information about a venue in the city centre area near x.
Original Reference: i am sorry but there are no venues near x in the city centre.

SOLUTION:
1