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 love these crackers!  Perfect snack for when I need something salty/crunchy instead of potato chips or other greasy snack.  I eat them a lot to hold me over between meals.  The price on amazon is great compared to my local markets.  Highly recommended!
Example Output: 5

Example Input: I loved this mold!  I wished I could have used it for more than one occasion, but it didn't last.  I did use it to make 30+ suckers for my daughter's first birthday. But there was going to be no way that the mold could be salvaged after that.  I would have liked to have kept to use on other occasions, but for the price it didn't matter to me that much.  It served it's main purpose :)
Example Output: 4

Example Input: I bought these when on sale through Amazon.  Nice crispy thick chips.  Definitely a great buy if you can catch them on sale.
Example Output:
5