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:
Found these while looking for good, cheap, low-calorie snack packs to buy in bulk for my office.  After my first shipment, I decided to have two boxes shipped to the office monthly via subscribe & save.  My next shipment arrives in two days. I'm so excited!  Gotta have my pop chips...

Ex Output:
5


Ex Input:
Wow, I did a lot of reading trying to make a good decision on a K-cup hot chocolate, and of course taste is something that is very subjective.  If you read all the reviews on every product you'll discover that nothing gets past everyone and maintains a perfectly spotless reputation.  So I decided that even with some bad reviews I'd try this one since it has a lot of good reviews.  I'm just going to say that there are some real hot chocolate connoisseurs writing reviews in this thread.  Some discerning reviewers say it has a slight taste of sugar substitute, or some such thing.  All I can tell you is I must have under-achieving taste buds because all I can taste is yummy hot chocolate.  My family burned through the first box and I just ordered two more.  If you don't like this I feel sorry for you. Better to have numb taste buds I guess.  Enjoy.

Ex Output:
5


Ex Input:
This lemon salt is ok, but the salt is not infused with the lemon, the lemon is mixed with salt granuals.  So might as well use lemon.

Ex Output:

2