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.

[EX Q]: System Reference: may i help you further?
Original Reference: what do you mean.
[EX A]: 1

[EX Q]: System Reference: x is a moderately priced near x on and riverside.
Original Reference: x is a restaurant in the moderate price range near the x in the riverside area.
[EX A]: 0

[EX Q]: System Reference: there are 239 restaurants in any price range.
Original Reference: we have 239 restaurant -s listed for any price range.
[EX A]:
1