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.

Example Input: Claimed to fit Coralife RO system It does not. Too tall. Didn't need to change them until last week. That's when my aquarium maintenance guy showed me that it was impossible. Disappointing, now the return window is closed.
Example Output: 3

Example Input: These layered necklaces are really in fashion now so I've been wanting to purchase. Finally got it and happy I did. Very cute for every day or even a night out
Example Output: 5

Example Input: This set of oils is great. Just a few drops...all of them have instant aromatic scent unlike some others out there. Pleasantly surprised with the quality of them. This ended up being a good pick.
Example Output:
5