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 looking forward to this tea, but unfortunately the mint overpowers the hibiscus and essentially makes this just another kind of mint tea.  I prefer the hibiscus tart be the star of the show in a hibiscus-based tea (aka "herbal infusion") and in my opinion, mint and "tropical" don't mix and now know going forward to pay more attention to the ingredients.  Still worth 3 stars because it can be a refreshing tea on a hot day, but just not a great tropical/hibiscus tea.
Example Output: 3

Example Input: This tea is not so tasty in my opinion. But one thing about opinions is that every one has one and we do not always agree.
Example Output: 3

Example Input: This product is shipped so fresh that even if it takes your family months to eat their way through the box, the last 'Bit-O-Honey' will still be fresher than anything you can buy off the shelf at your local grocer.  These are the large candy-bar sized, wrapped in wax paper.  Because they are fresh, they are soft like taffy and so a breeze to extract from the wax paper, plus have the fullest flavor ever.  Enjoy!!
Example Output:
5