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: This Melitta Riviera Sunset blend is a nice, and light coffee that is suitable for anytime of day.  It's particularly great for drinking at night because it is decaffeinated.  The texture is nice, and does not have an acidic taste or anything.  It's meant for casual drinkers.  I do prefer my coffee darker, WITH caffine, but I did enjoy this blend.  I would recommend giving this a try and judge for yourself.
Example Output: 4

Example Input: This has a great rich taste. Remember this is ground whole leaf, so the tea is stronger than you may expect.  Not overly sweet and dissolves readily.  I use it during workouts mixed with ice water in a Polar bottle.
Example Output: 5

Example Input: I bought this because it's organic cheese puff. My son love Gerber cheese Lil' Crunchies. I thought he may like this too. I subscribe it once a month. Now there is 4 cans not open. The idea of mixing cheese and carrot is great, but there is no taste for this cheese snack. There is no cheese flavor in the puff. My son opened the can and keeps giving the puff to me. My son love Happybaby's yogurt melts, beef stew, happy baby banana beet blueberry and Spinach, Mango and Pear. This cheese puff does not work for him.
Example Output:
2