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: These Backyard BBQ Kettle Chips were a great deal with the promo code.  It was nice to have a larger size bag.  Some Kettle Chips in the grocery store are only about 5 ounces and we polish them off in one family lunch!  They arrived fresh and were not in crumbles as some other chips from Amazon Grocery have been.  Great flavor and All Natural!
Example Output: 5

Example Input: Love this soup.  I have been eating this soup for a long time. I have tried several different soups with these same types of ingredients, and this one is the best by far.  However, I will not order it from Amazon again.  I ordered a case, two different times, and the first time 6 of the 12 cans were dented.  The second order, the postal worker delivered it to me in a plastic trash bag because 2 cans were busted open, the other 10 cans, were dented with the labels coming off of them because of getting wet from the soup that had leaked from the busted cans.  It was a huge mess to clean up.  They need to package items better.  Amazon did issue a full refund, but after having 2 out of 2 shipments being damaged, I am not willing to order soup, or any other food items from them.
Example Output: 5

Example Input: These cups were difficult to cap (putting the lids on securely was a comedy show) and they created a mess when used in the Keurig; the water went everywhere.  Add together PIA and MESS with an end outcome of weak cup o' Joe = I'm not a very happy buyer.
Example Output:
1