You will be given a definition of a task first, then some input of the task.
In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.

I purchased these for friend who has been traveling. The headphones arrived faster than expected and came in their own zippered case. As soon as I gave them to my friend she was overjoyed with them. The case will allow her to keep them in her purse so that they are available at any moment. She has told me that they work great with her Google phone.
Output:
5