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 ordered this as a christmas present for my Daughter and Son in law. He tried it the day after Christmas and gave it 2 thumbs up.
Example Output: 5

Example Input: Well you get what you paid for. While this milk chocolate k-cup is pretty cheap $12.95 per 24 (54 cents per count) but it is not good. It tasted like watered down chocolate (as if you put in too much water and not enough milk or chocolate/cacao for that matter). This thing is sweet tho, in fact kinda too sweet for my taste (i am beginning to think half of the powdery content is sugar/sweetener). I thought it was the amount of water that made it taste watered down so I lowered the cup size from 8 ounce to 6 ounce on my Keurig brewer and it's the same thing.
Example Output: 2

Example Input: I have recently stopped eating a number of allergens (dairy, soy, nuts) and these were one of the few snacks which fit into my dietary restrictions.  Unfortunately, these were pretty gross - miserable texture and more cardboard flavored than berry.  I threw them away.  I would recommend the cocoa ones as they are much tastier and also allergen free.
Example Output:
2