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 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: These are nice to have however, the edges are very sharp! I used these clips to put a new blanket binding around a baby quilt and when I slipped it off the blanket it sliced through the binding. I also cut my hand and a finger. I hade to sew a patch on the blanket binding.
Example Output: 4

Example Input: Product was five stars, shipping was 0. I really hate to score them down because of this, but I had to spend a total of 1.5 hours on the phone with LaserShip over the course of three calls because they would not deliver a box of just mentos without being signed for. I almost had to request a refund because I was about to be required to drive 30 minutes to pick this package up at the shipping facility. I'd only buy from this vendor again if they switch shipping services.
Example Output:
3