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: My wife and I tried this product a few days ago. We were not disappointed. The coffee had a good flavor, and the low acid was a nice added benefit.
Example Output: 5

Example Input: Yum!  All the convenience you expect with a K-Cup with all the flavor of real hot chocolate.  The kids love it, and so will you!
Example Output: 5

Example Input: Melitta pods are full flavored; however, they do not fit my senseo coffee machine.  One pod in a two pod holder is too small and two pods are too large.  Sure do wish senseo was still readily available in the super markets!
Example Output:
3