You will be given a definition of a task first, then some input of the task.
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.

My dentist recommended these tuft brushes to help clean the deep grooves in my chewing teeth (molars). Most regular toothbrushes and even electric tooth brushes do not reach deep enough, which led me to have lots of cavities. It also is great for reaching behind my back most teeth. I use both regular tooth brushes and this brush to clean my deep grooved molars. So glad I found these in economic 3 packs, so worth it...
Output:
5