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 was exactly what I was looking for in this fourth book and kept me hooked through the whole read. I highly recommend reading the whole series/ anything by Jay. Absolutely love
Example Output: 5

Example Input: The speaker is nice looking, small and light. It looks exactly as the photo shows. The sound is ok. Definitely not Bose quality or even close to it. But for $18 the sound quality matches the price. I'm using this speaker for my bedroom, so it's fine. I wouldn't use this as a speaker for a large area like a living room.
Example Output: 4

Example Input: it's amazing. this is my first time to use banding tapes like this, I am so lucky to find it works well for me. the tape really help to protect he joint tissue and relieve pains. and it lasts very long. I will definitely buy more.
Example Output:
5