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: These are delicious crackers, but don't ship well, and many end up broken in the process.
Example Output: 3

Example Input: These are great little snack packs - flavorful chips and fairly low fat and low cal.
Example Output: 4

Example Input: Even with the tips shared on how to open it, it's still pretty difficult to open. I guess I have weak hands. My husband usually has to open it for me, and even he doesn't do it with ease. I would recommend getting the larger Prepara herb savor instead of the pod. It's much easier to open and can hold more. I could hardly fit any cilantro in the pod (considering that the grocery sells them in such large bunches and I only use half).
Example Output:
2