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:
It always amazes me that there are not dozens of reviews here extolling the fine qualities of this tea.  I have drunk it pretty much every day for the last five years and I never get tired of it.  It's an excellent morning tea, is smooth without being insipid, and is almost impossible to ruin by oversteeping. Just use decent water.  I like a little stevia in it, as I'm a wimp. It brings out the natural sweetness of its malty, slightly floral style.  I just bought another two pounds.

Ex Output:
5


Ex Input:
I wouldn't even think of buying this product unless I know the price per unit. How can I compare other items online or in a store?

Ex Output:
1


Ex Input:
Great product! All the flavors were delicious. Loved the fact that the single serve bags were about 100 calories each.

Ex Output:

5