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: I love this bag because it's just what I need! It's like a small duffel bag and has lots of room and it's made of waterproof material which is great for rainy days or just wiping clean. It's more on the casual side so it's not for date night but most definitely an everyday carry all!
Example Output: 4

Example Input: I have been struggling with lack of energy and weight gain since having a partial thyroidectomy 2 years ago. I am on a super low dose of levothyroxine and my blood work always comes back normal even though I still struggle with symptoms. thyroid support has changed my life. In one month of taking feel so much better- more energy and motivation to work out again.
Example Output: 5

Example Input: A pretty watch and chain. Quality seems good. The stem broke after 2 years of use...probably my fault in winding it too vigorously... and the repair cost estimate was double the price of the watch. I may get another one and try and be more gentle when winding it. Overall I think it is well worth the price.
Example Output:
4