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 Input:
System Reference: may i ask near where?
Original Reference: i did not understand. what part of the city would you like me to search?.

Ex Output:
0


Ex Input:
System Reference: what area are you looking for?
Original Reference: asks for the area.

Ex Output:
0


Ex Input:
System Reference: original us restaurant, is in nearby russian hill, it is new american food in the moderate price range and allows kids.
Original Reference: original us restaurant is near russian hill and serves new american food in the moderate price range and allows kid -s.

Ex Output:
1