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: The worst!!! it is just plan awful bitter and strong and you cannot taste the Hazel Nut flavor at all!!!!!  Do not buy this product save your money!!!!!
Example Output: 1

Example Input: My son really enjoys Earth's Best lentil!  He eats the entire jar for dinner and always wants more.  The product shipped very quickly.
Example Output: 5

Example Input: Having just successfully grown two kinds of seeds, using the same technique, these immediately mildewed. They came with no instructions, except to look on the Web. On his site it said instructions are expensive, and would be posted in a few days. I.e., there are no instructions for this mix as far as I could see. I have news for you Todd, in the last company I worked with we provided BOTH written instructions with the product and a Web site. Instructions are for a customer's convenience, not yours, Todd, and are not omitted so that you can save a few cents.
Example Output:
1