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: I had bought this product last year my dog loved them, but... I subscribe to a couple of Bichon Frise newsgroup and they are saying not to feed these to your dog as they come from China I threw out what I had left for the outside critters in the forest.  I called Dogswell today and they verified that even though they say U.S. on them they are still coming from China.
Example Output: 1

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: You can purchase this for $35.00 including free shpping straight from Penta's Website.  I really enjoy drinking this. I can see a difference with my everyday life.
Example Output:
5