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: It makes good tasting gluten free food... but... like most gluten free food, it's expensive and it's got a slight grit to it. I've made biscuits, waffles, and pancakes with it... a friend made some awesome banana bread with it. it's very good for gluten free...
Example Output: 4

Example Input: I drank this coffee over 30 years ago when I lived in The Netherlands. So glad that I can get it through Amazon. Strong, full bodied but easy on the tummy!!!
Example Output: 5

Example Input: My wife loves these biscuits so I thought I would surprise her and buy a Family Pack of 5. They arrived packed in a box with the other items I purchased which included a heavy can of syrup and a can of pectin, neither of which were fully secured inside the box. Although they tasted as good as usual, my wife was very disappointed since so many of the biscuits were broken, probably around 20%. I doubt whether we will buy these on-line again.
Example Output:
2