Instructions: In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good.
Input: Salt and vinegar chips are definitely my favorite type of any potato chip. These ones made by Kettle were very tasty and I enjoyed them thoroughly. I just wish there was a more healthy option with the same great taste.
Output:
4