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 was really impressed with this. There are many flavors, and quite a bit of heat. With this and your favorite brand of cocunut milk you can make some great Thai curries at home.
Example Output: 5

Example Input: Kind of a ripoff. I bought the theater box instead of the 5 piece candy bar version and that turned out to be a big mistake. Each box has only 8 or 9 pieces and they are randomly filled so you are not guaranteed even 1 piece of each flavor. One box had 6 green pieces and 3 black. A better value is 20 pack of the original 5 piece bar. This theater box is sold by weight (4oz) and not volume. The box is about 90% empty- Ripoff!
Example Output: 1

Example Input: I had bought Pocky when on vacation and enjoyed it but living where there are no Asian stores I have to shop on the internet. The guys in the family seem to like it better than the ladies for some reason. For a bit of insanity, search for Pocky commercials on youtube!
Example Output:
5