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: This is the pancake mix we go to when we don't have buttermilk in the fridge (don't think the vinegar trick is worth it so we always do fresh) to make Alton Brown's buttermilk pancake recipe.  This Stonewall mix is a good option and the flavor is the best of any store bought mix by far! It might cost more, but it really is superior to the other prepared mixes.
Example Output: 4

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 love this water! I started buying it after my Bikram yoga classes to rehydrate, and now drink it whenever I feel a little dehydrated.  Living in AZ, I tend to not drink enough water so these help tremendously and are delicious too!  Try them! You'll be hooked :)
Example Output:
5