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: This product has already impressed me. I bought this razor just a few days ago and have used it multiple times already! It does not pull or tug like other razors I have used. I am a big fan of the multiple attachments that come with this razor, the nose hair attachment is one I will use the most!
Example Output: 5

Example Input: This book is awesome! Anyone who loves the ocean needs this in their home. Absolutely beautiful photography and some really cool quotes throughout. Highly recommend.
Example Output: 5

Example Input: This is pretty wimpy as far as diffusers go but it's really pretty and has a wide range of colors. It only runs a few hours with 5-6 drops of oil. Better for a smaller room
Example Output:
3