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: If you are never going to wash your window or get dust on it maybe it won't scratch instantly... Little twigs hit it and it scratches.... Haven't been able to see out of it since the second ride I went on... JUNK
Example Output: 1

Example Input: For a short story, this was very compelling. Held my attention from beginning to end. The characters are intriguing, interesting and insightful. At this moment in my life a great reminder that we do not walk alone!
Example Output: 4

Example Input: Overall I'm happy with these. I'm a software developer, and I use them 8 to 10 hours a day. The picture is sharp, the size is perfect, and I quickly adapted to the curve. Now that I'm used to the curve, I wouldn't want to work without it. My only complaint is the enormous power brick which cover adjacent outlets on my power strip. They probably could have come up with a better design for this. I ended purchasing a second power strip just for the monitors. Otherwise they're a great buy and I would purchase them again.
Example Output:
4