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: Fiber one products actually don't have real fiber. They contain inulin (from chicory root) which is technically fiber because the body can't digest it. Unfortunately fiber is defined by anything that can't be broken down easily. These products do not contain REAL fiber. (The real fiber usually found in whole grain breads and bran cereals) So if it says "chicory root" or "inulin" in the ingredients, you can be sure you aren't eating the fiber your body can actually use. So if you want lots of sugar and fat without fiber, this product is for you.
Example Output: 1

Example Input: Thought this might be a nice alternative to use with my favorite coffee, but was sadly disappointed. It leaked all over - no matter what we tried and the coffee was weak, machine clogged with most attempts and water wouldn't brew thru. At times the cup even melted a little - leaving a nasty taste in the coffee. Go with the greener alternative and try the ekobrew - much better results and no waste.
Example Output: 2

Example Input: Sent this as a gift, and found out later that many items were stale. They loved the thought, though, and loved the way it looked.
Example Output:
2