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: Would a great timer if it was waterproof. It would seem like something that is being used outdoors in most cases would be waterproof especially something controlling sprinklers. I had one growing season but failed a few weeks into the following season after the control shorted out after getting wet. It performed so well that I thought I would just try another and cover the control as best I could with a plastic bag. It failed after only a few months and for the same reason even after protection.
Example Output: 1

Example Input: I've used this on a number of projects: taking a car dealer's name off the trunk lid of my car, getting the sticky residue off a window where weatherstripping had been, cleaning a stove. The only place it fell short was cleaning excess caulk from around a sink. It worked no better than plain water.
Example Output: 5

Example Input: The tank fits nicely around the chest, but as many other reviews say, it is too blousy at the bottom and around the middle. I don't need my gym clothes skin-tight, but I want them to at least look like they fit well. I probably won't be wearing this out (even to the gym) any time soon.
Example Output:
2