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: 10 out of 12 cans are seriously dented , and, the dents did not occur during shipping. These were dented befor they were packed in the case of 12 at the factory. These will get trashed because it will be more of a pain to return them. I will never buy these again !!! Amazon did refund my money without having me return the cans. Cudos to Amazon. They are a class act!
Example Output: 1

Example Input: I was amazed at how good this is for canned fruit (which I normally won't touch).  In particular I adore papayas and mangos.  The fruit juice instead of syrup is also very nice.  The easy pull-top on the can makes this a great item to stash in my desk drawer at work, so that I can have a fruit snack easily even if I was too busy or forgot to bring lunch.  So far I haven't gotten a can that had any problems.  The watermelon isn't crunchy - of course not! - but it's good, and certainly not "slimy".
Example Output: 5

Example Input: I purchased this plant as a gift for my husbands office; it looked more like the 'Charlie Brown Christmas Tree' than a bonsai tree.  Although I have to admit, it is alive and healthy.
Example Output:
3