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 made cheddar biscuits with this and they came out a little dry the first time, but i adjusted the recipe and they were amazing. I just added a little more milk and another egg. (we have chickens that lay very small eggs, so 3 of our eggs is like 2 large store bought ones.)
Example Output: 5

Example Input: I got these cocoa cups based on my sister-in-law's recommendation.  It has a great flavor and is inexpensive.  Quite a good combination.  I'll be ordering more very soon.
Example Output: 5

Example Input: We've only used this once, but it kept us awake most of the night.  We were surprised because it's decaf, but we couldn't sleep for hours after going to bed.  Tastes good, though.
Example Output:
3