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: We bought this to replace our Cafe Escapes Dark Chocolate Cocoa.  They are less expensive- but you get what you pay for.  This cocoa is watery brown sugar water with an aftertaste.  I do not recommend it.<a href="http://www.amazon.com/gp/product/B005K4Q1T0">Grove Square Hot Cocoa Cups, Dark,Single Serve Cup for Keurig K-Cup Brewers, 24-Count</a>
Example Output: 2

Example Input: These are a delicious guilt free snack that I always have handy. They are so convenient and last a long time. I also get the corn and mixed veggies which are also wonderful. You can get them at Whole Foods but not at this price.
Example Output:
5