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 purchased this as a present but it doesn't come As shown in the picture.  It is little white bags with the flavor written on them.  Someone receiving it as a gift wouldn't even know what it was unless I explained it to them. Will be returning.
Example Output: 2

Example Input: Arrived in 6 days and were so stale i could not eat any of the 6 bags!!
Example Output: 1

Example Input: The packaging is so cute on all of Ashby's teas and the tea is exceptional. I would recommend this tea to anyone.
Example Output:
5