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.

Ex Input:
Wish there were more ventilation holes in this, but otherwise its a good product. Fits a standard size litter box, not a deluxe one. Wipes clean very easily. Sturdy. One cat was too fat for the hole, but that's not the products fault :)

Ex Output:
4

Ex Input:
Like all my past Sonicare brushes, this one broke. However, this one crapped out much faster than the other ones that I've had. I'm going to try some other brands and see if I have more luck with those.

Ex Output:
2

Ex Input:
I agree with many reviewers that this book is a recycled version of the first one. Plus, it's hard to explain time-travel to a 4-year-old. I much prefer the original story. However, my kids (ages 2 and 4) LOVE this book. They will pick it over the first one almost every time. They think the diapers and the "tacos love dragons" pages are hilarious. They also love the last page, although the pictures include multiple cultural references that they don't understand. So, who am I to question a book that my kids love so much?

Ex Output:
4