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 candy arrived with some white waxy stuff on it; almost as if it had partially melted at one point.  Tasted chalky.  Not interested in a partial refund.  Next time find a way to make sure candy is not stale.
Example Output: 2

Example Input: Love All THE FLAVORS!!!!! JUST THE RIGHT SIZE PACKAGE AND TASTE GREAT!!!!! GIVE THEM A TRY YOU WILL LOVE THEM ALSO!!!!!
Example Output: 5

Example Input: The taste is harsh as it is a lesser grade of Yunnan. It is ok to drink, but not to really enjoy. I only make it for when I am in the hurry and will not be able to fully enjoy my tea anyway.
Example Output:
3