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:
This tea is not so tasty in my opinion. But one thing about opinions is that every one has one and we do not always agree.

Ex Output:
3


Ex Input:
This product is good. However, I feel the carbonation is a little more emphasised over the fruity flavor. Unless of course carbonation is really wanted. I didn't find the juice flavour as good as Juicy Juice. And the cost is ~50% more per ounce for Switch vs. Juicy Juice for my region.  I would say that for everyone who is interested in this product... let your taste buds be your guide.

Ex Output:
3


Ex Input:
I don't know how long these sat on the back of a shelf somewhere, but they were so old that they wouldn't cook.  I had to throw half of them out, because the skins were damaged, a clear sign of dried beans past their prime.  I can't even return these or ask for a refund, because food is not returnable.  Will find a different brand to use.  For now, I have about fifty servings of beans to throw away.

Ex Output:

1