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: I purchased this tool box because I needed a tool box for my home. The tools are sturdy and it's one of the few that had the correct bit I needed for my car. I was able to use these tools for my car and house, I really like this tool set
Example Output: 5

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: Sound quality and comfort are fantastic. However, they are not durable and have consistent issues with the wires fraying. When they honor the warranty this is great, but in my case as the Amazon seller is not on Etymotic's "authorized" list, my 2 year warranty is invalid.
Example Output:
3