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: Like other reviewers, I'm disappointed they changed the formula. My dog has a bunch of problems and pees/poo's himself everytime he goes out. I use these in-between baths to keep him clean and they used to be a LIFESAVER. With the new formula he doesn't get nearly as clean as he used to and he still smells. They work and I be see soils coming off, just not completely.
Example Output: 3

Example Input: This product works well and helped me identify some bad wiring by a contractor. So it handles it's purpose. Two things I wish were different. 1. The LED numerals are still much to bright even on the lowest setting. 2. The product is much to shallow. If you are going to use it in a rack mounted environment, then it should be fine. However if you are going to use it in a stack, it is much to shallow to stack anything on top of, hence it must go on top. I wish they had a full depth version. See pics
Example Output: 3

Example Input: Of all the soap dispensers I have used this is by far the best. It's easy to install and fill and it's quite substantial. Soap is always ready to dispense on first try and there is no leakage. Great product.
Example Output:
5