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: zuni cafe, is expensive.
Original Reference: how about zuni cafe, an expensive one?.
[EX A]: 1

[EX Q]: System Reference: there is a spanish restaurant called piperade.
Original Reference: do you want to try piperade, its spanish food.
[EX A]: 1

[EX Q]: System Reference: enjoy vegetarian restaurant allows children.
Original Reference: enjoy vegetarian restaurant allows kid -s.
[EX A]:
0