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: At first, I was concerned about ordering Babka online but I kinda missed this one. As I tasted it the only thing I could say was : "wow". I will order this again for sure.
Example Output: 5

Example Input: I tried this gum after Trident cinnamon became hard to find a couple of years ago.  (Trident told me that they were overhauling the plant that made the gum so it was in short supply but it would be back.)  I quickly discovered that the Flare 5 was far superior to the Trident and I haven't looked back.  It does last a long, long, long, time.  Unfortunatley, as other reviewers noted, it has become very hard to find in stores.  Trident cinnamon is everywhere but now I don't want it.  Amazon saves the day again.
Example Output: 5

Example Input: Use olive oil to cook this, salt it well, and it is the best, most tender popcorn I have ever eaten. I add a tiny bit of butter to mine, but don't need it. My nine year old daughter didn't like popcorn until she reluctantly tried this. After a few bites, she consumed half the bowl!  I bought mine at a specialty popcorn shop in Long Grove IL, so I didn't have to pay shipping costs, but when it's gone, I might have to bite the bullet and order it from here.
Example Output:
5