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: i am sorry but there are no hotels in the area of north waterfront.
Original Reference: i am sorry but there are not hotel -s in the area of north waterfront.
[EX A]: 0

[EX Q]: System Reference: there is a sea food restaurant called alamo square seafood grill.
Original Reference: the alamo square seafood grill servers sea food.
[EX A]: 1

[EX Q]: System Reference: what area are you looking for?
Original Reference: in what area would you like me to look?.
[EX A]:
0