You will be given a definition of a task first, then some input of the task.
You are given a review about a place. You need to provide a rating from "1 star" to "5 stars" for this place.

This is the best restaurant in vegas!

Firstly, we were welcomed by the staff with just great smiles even thought it was like 4 in the evening when no one usually has lunch.

The sushi was out of the world!

You need to have the green tea tisamisu! It's just amazing.

If your are in vegas, this place is a must go.
Output:
5 stars