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 don't like this product at all. Much tastier and cheaper to just use hot water and a packet of hot chocolate mix from Nestle or Swiss Miss.
Example Output: 2

Example Input: DO NOT BUY! REVIEW ONLINE! Looks like another treat made in China with multiple reports of suspected poisoning!!! Please only buy treats made in the USA!
Example Output: 1

Example Input: OK but too Salty. they should make a low sodium version. The spicy is better.
Example Output:
1