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.

Ex Input:
Though I did not notice a major difference in my blue light exposure I definitely found it easier to fall asleep after a full day of using devices within my workplace and also at home for leisure

Ex Output:
4

Ex Input:
This is te 2nd UFO drone I've purchased. This model is better than the one I purchased previously from another seller. It holds up better and flies longer. I'd purchase again

Ex Output:
5

Ex Input:
The ear rings came in very cute packaging. But what I'm concerned with is that they are turning black and turning my ears black. I ordered these because it says they are sterling silver so I thought that they wouldn't turn my ears any color. They are a super cute design but not something I can wear on a regular basis because of the quality.

Ex Output:
1