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. 

Example Input: The pineapple coconut combination is refreshing. I especially like that there is no added sugar. This is a welcomed change from other brands.
Example Output: 5

Example Input: I love these - they taste great.  But I get them in the local Dollar Store. Two stars for the value, five for taste.
Example Output: 2

Example Input: just got a new keurig and was looking for a great chocklate drink/still looking/this is fair at best/watery and nothing to brag about
Example Output:
3