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: Was looking forward to this drink but was put off by its sweet soda-like taste.  Maybe it's an acquired taste? I'm not sure  but the high calories don't make me want to try.  Looking forward to a diet version.
Example Output: 2

Example Input: I'm a little perplexed by all the great reviews.  This was the most bland chowder I've ever had.  I prepared it with just milk and a little butter, and it tasted like nothing!  Added some salt and white pepper, still nothing.  Added some black pepper and Provence herbs, now it tastes like herbed potato soup.  On the plus side the clams were nice big chunks and the potatoes were tender.  The consistency was pretty good too.  It just had no flavor.  Not going to be buying this again, certainly not when it's this expensive, too.
Example Output: 2

Example Input: This is what I was looking for and was missing it. The taste is exactly the taste as the one made in India so just loved it and remember my days back in India. Definitely recommend it.
Example Output:
5