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: Good thermal qualities but the material is too stiff. They don't hang well at all. Very disappointed but will serve there purpose for the rest of the Michigan winter.
Example Output: 1

Example Input: Not so good at marking, even on white clothes. I have to print in large letters even with the fine point marker. The ink does not seem to penetrate well.
Example Output: 2

Example Input: I used the product as a bathmat in a standard 5 ft. tub. Prevents slipping, seems durable, and inexpensive. If I had time I'd look out for same qualities but something a little more aesthetic, either in the cut of the mat, clever cut-outs, interesting color or design/ print, that for me would go with a standard white tub.
Example Output:
4