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: Globe Department Store is where money came from.I have used Pure Grace for 10 years and this bottle smells like rubbing alcohol. I'm taking it to a lab with my real bottle for analysis. this stuff smells totally fake.
Example Output: 1

Example Input: They do not consistently charge. My phone is constantly turning off and on actually draining the battery faster. All of the cords in the pack I received do this. Don't waste your time buying this product.
Example Output: 1

Example Input: We have a Dyson V10, which is a fantastic product. But this popped up as a lightning deal, so I bought it for a vacation cabin, thinking that if it stank, not much was ventured. Surprising performance. It only has one brush, so that has to do for both smooth surfaces and carpet. It performs almost as well as the Dyson on both, is lighter and easier to maneuver, and has a bit longer run time on a charge. It picks up pet hair quite well. It does tend to accumulate longer hair in the brush, compromising function, but this is fairly easy to remove. For the price, it's superb
Example Output:
4