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: 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: Love this hot chocolate--nice creamy flavor. The price is good and I love the single packs. This is not a flavor available to me locally.
Example Output: 5

Example Input: This is a good product, especially for iced coffee, but why is it twice the price as it is in stores? This isn't a fluke--within the past two months I've bought it for $5 a jar in Seattle and in Nevada, so it just looks like good old-fashioned gouging. Try harder Amazon.
Example Output:
1