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: These are junk! Both bulbs have burned out within a two month period!! I cannot believe that this company can be in business with such poor quality. I have used infrared lights for my ball python for many years now and I get a varied range of months from a bulb, but I have never gone through two bulbs in a matter of two months! I am very disappointed.
Example output: 1
Example explanation: The user seems very disappointed in the product. Because the bulb they ordered has been burned out earlier than usual. So, he gave 1 star to the review considering it extremely poor
Q: 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.
A:
4