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.

Example input: System Reference: x is a reasonably priced fast food restaurant down by river cheap.
Original Reference: x is a cheap fastfood restaurant located near the riverside.
Example output: 1
Example explanation: The system reference could have been uttered by a native speaker.
Q: System Reference: there are 11 restaurants that serve american food near nob hill.
Original Reference: there are 11 restaurant -s that serve american food near nob hill.
A:
1