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:
I bought 21 0z freeze dried liver. Half the container was filled with powder instead of pieces/chunks. I feel I was betrayed by the company. Hence I did not get what I paid for

Ex Output:
3


Ex Input:
Why in the world would Amazon want to sell an item and say can be ingested,  when it clearly has ingredients that can cause cancer. Wish every state would wake up like California and ban all these cancer causing things.

Ex Output:
2


Ex Input:
I love coffee and admit that I am particular when it comes to good coffee.  I was not expecting much from this coffee and was pleasantly surprised to discover it was quite good.  It falls into the likes of Starbucks and other shade-grown coffee brands -- deep, rich flavor.  Though I enjoyed it, I am not sure I would purchase this unless it was on sale.  I do find it a bit overpriced.  If you don't mind spending the money, you will be happy with this coffee.  Otherwise, I would suggest purchasing this on sale for a special occasion.

Ex Output:

4