Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
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
Reason: The system reference could have been uttered by a native speaker.

Now, solve this instance: System Reference: there are 51 expensively priced restaurants which do a good dinner service.
Original Reference: there are 51 expensive restaurant -s serving dinner.
Student:
1