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: For those of us on a low carb diet these little tablets are just the thing.  Two years ago I started cycling again after many years but was having heart arrhythmia after longer rides in high heat.  I was drinking plain water but did a little research and thought electrolytes might be the issue.  Gatorade wasn't an option because it is so loaded with carbohydrates so I looked around for a low-carb alternative.  The "zero carb" sports drinks didn't help so what to do?  One day I ran across these at my bike shop so tried a tube of them.....voila!...problem solved!!  I've shared them with two friends in particular whose problems with leg cramps were resolved while using these.  These guys got it right -- they are superbly formulated and simply work.....
Example Output: 5

Example Input: Love these little peanut butter dipped granola bars.  They are delicious.  They are only one point on the Weight Watchers POINTS system.  Even you were not dieting, these bars are a great and filling snack.
Example Output: 5

Example Input: Gluten Free foods tend to be extremely expensive when compared to "regular" foods. This licorice follows that trend. For the times when you'd like to treat yourself, Candy Tree Organic Licorice is a tasty and safe treat for Gluten Intolerant people. Amazon seems to have the best prices on it too.
Example Output:
4