In this task, you're given a review from Amazon. 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, 4: good, 5: extremely good.

Example Input: Amazon sent me a wrong shelve that fits only 4 pairs instead of the ordered 5 pairs. Then Amazon did it again with the second order. The shelves are terrible, flimsy, the front horizontal supporter is made from the papers and gives way right away. Terrible product, terrible service. Nobody at Amazon pays attention what they they ship.
Example Output: 1

Example Input: Best betta food on the market! Just make sure you soak the pellets for at least five minutes in tank water before feeding your fish. You would be surprised at how large they get.
Example Output: 5

Example Input: The installation of the weather-stripping is fairly straightforward. It takes a bit of strength but once you get the hang of it goes pretty well. I used the plastic screen installation tool. Getting the old weather-stripping out of the track is somewhat tedious, putting the new weather-stripping is "fun".
Example Output:
4