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 have used this product multiple times.  In fact, I purchased four tubs of the gold and silver luster dust (2 each) five years ago and I am JUST NOW running out!  I use this stuff to gild all sorts of things for Renaissance themed banquets - including gilding an entire roast duck and then, using vodka, painting filigree designs onto it!  The clients thought it was prop food it looked so beautiful.  I can't recommend this stuff enough!
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: These bars by Pamela's Products are OK.  They are very chewy and moist.  Also very stick-to-your-teeth.  However, taste is limited.  There is a general bland undertone, overall, but somewhat heavy on the oat flavor also with a bit of a coconut undertone.  There is no noticeable chocolate taste (to me).  However, the chips' soft slick variance from the other chewiness is obvious.  Bars (of any kind) can be very personal to folks in taste (like or dislike).  Try and see for yourself.
Example Output:
3