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: Spent $29  for real kona coffee and didn't want the kona blend sold here. The Hawaiian roasters was disappointing. Tasted nothing like the kona we had everyday while honeymooning in Maui. Not good
Example Output: 2

Example Input: most of the nuts in these bags were so old they had turned black totally worthless will never order again
Example Output: 1

Example Input: Since I had been recuperating from a 24 hour flu bug that lasted a week, I knew I was low on electrolytes.  I opted for this product, as some products tend to further aggravate my stomach and acid reflux.  This worked out extremely well, and the taste is good.  I WILL keep it on hand from now on!
Example Output:
5