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: While I have not purchased this from Amazon I have used it for many years.  It makes a super layer for, my version, of Zuppa Engelesia and mixed with cream can be incorporated for Pate Choux. I don't live in Hollywood any more so it is getting more difficult and thanks to Amazon I find it it available and in larger cans.........  I plan to order soon.  Gino Rossi Mangia con passione chef/caterer
Example Output: 5

Example Input: I used the small cup setting and even opened up the cap and scraped the excess mix out of the cup and it is still very weak tasting.
Example Output:
2