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 am very pleased with this selection.  I have not tried the other hot cocoa brands for Keurig but this one is awesome!  I bought the milk chocolate.

Ex Output:
5


Ex Input:
I discovered these when I moved to Canada a few years back.  Before this I had only experienced a thicker Wasa crispbread and was a bit put off at first.  The feelings dissolved the first time I ate one of these with light laughing cow cheese.  They are a little more "powdery" than I'd like, but they compliment most cheeses very well without overwhelming them.

Ex Output:
4


Ex Input:
Overall the drink was decent. It's tart and sweet at the same time. Switch is alright but might not be worth the money depending on how much you like it. I myself would prefer a Spicy V8 over this. It might be a good substitute for some who don't want to drink as much soda, but for me i'll just stick with the v8 and the occasional soda.

Ex Output:

3