You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

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.
Solution: 1
Why? The system reference could have been uttered by a native speaker.

New input: System Reference: there are no children allowed at butterfly.
Original Reference: no, butterfly does not allow kid -s.
Solution:
1