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:
The last bag of these I got from Amazon had a lot of hollow bisquits.  It was weird ......  they just weren't solid like they should be.  I'm going to switch to another brand of grain-free dog bisquits now as there's no sense in paying for something I'm not getting (and these are expensive!)  And if it wasn't for the good packaging I'd wonder if bugs had gotten to them..... but I don't think that's possible.

Ex Output:
2


Ex Input:
Love this brand. Great price with save and subscribe. My husband loves them. Top with whipped cream in a can and I have a happy man. I wish you could buy all pepermint cocoa.

Ex Output:
5


Ex Input:
too much MSG gives it a nasty salty after taste.  i basically gave them away.

Ex Output:

1