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. 

Ex Input:
We love these crackers but getting them through the mail doesn't work - all the crackers were broken and crumbly.

Ex Output:
1


Ex Input:
This is by far the best hot cocoa I have found yet for the Keurig. I love the assortment and the peppermint is my favorite. I would give these try for sure if you are looking for some hot cocoa K-cups. All the other selections for hot cocoa that I have tried were just okay tasting. These are AMAZING!!!! LOVE THEM! I will order these for sure again!

Ex Output:
5


Ex Input:
These are the best skinless boneless sardines that I've tried and they are very reasonably priced.  They remind me a little more of tuna fish than sardines, but in a mild, rather than bad, way and are very firm for water-packed fish.  I especially like these mixed with salsa. They work out to $1.57/can or .36/oz if you choose the longer, but free, shipping.

Ex Output:

4