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. 

Example 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.
Example Output: 5

Example Input: love the ease of having green natural tea anywhear any time . tastes great i love this stash green tea
Example Output: 5

Example Input: I've tried using a toaster/microwave/confection oven/stove to make these things myself, but I wasn't able to. I even tried barbecuing but was unable to get the chips to "pop". I verified my methods with a local grocery store clerk named Mat (his name has one "T", which seemed a little strange to me), but to no avail.  I contacted customer support asking for instructions but they acted aloof and confused about their own product! I don't know why they couldn't just mail, or at least email me some popping instructions.  Luckily I think even raw/unpopped they taste pretty good. People look at them funny at first, but after they try a few they basically devour the whole bag, completely unpopped...
Example Output:
5