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.

Q: System Reference: i am sorry. i did not find any expensive restaurants in outer richmond.
Original Reference: there are no restaurant -s in the outer richmond area in the expensive price range.

A: 0
****
Q: System Reference: may i ask near where?
Original Reference: do you care what it is near to?.

A: 0
****
Q: System Reference: what price range are you comfortable with?
Original Reference: can i confirm you are looking for price range -s?.

A:
1
****