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: Either I got 15 tubes that came from a bad batch lot or they are not selling the right Harissa. I bought 15 tubes thru Amazon from Parthenon Foods and used 4 of them so far and after putting the whole tube it still isn't spicy at all. Normally a whole tube would get you to sweat a bit!!!!! This seems to be a case of false representation. I buy these tubes in Canada at the grocery store all the time when I am up there and they provide a nice kick and spice (as they should). What's up with dat?
Example Output: 1

Example Input: Ordered this product without reading what i was getting ... dumb on my part. My wife loves Nantucket Blend.  I mistakenly thought this was for 2 boxes of 24 k-cups because of the price. Much cheaper to pick this great product up at Kohls or Bed Bath and Beyond if you have access to them.
Example Output:
3