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:
My wife and I tried this product a few days ago. We were not disappointed. The coffee had a good flavor, and the low acid was a nice added benefit.

Ex Output:
5


Ex Input:
Raving reviews made me buy this for dogs. I have a lab mix a beagle and 2 Shepards that I got from impoundment and they're not spoiled. One chewed it to crumbles but left it on the ground and my Shepards have been burying them in the backyard. I wasted my money on this one.

Ex Output:
1


Ex Input:
Initially, I was not happy with this product. After contacting the vendor they remedied the problem and I am happy with it now.

Ex Output:

1