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:
We wanted the Baconnaise lite after seeing the product on Oprah. We looked forward eagerly to the  prospect of that great bacon taste. The decision in our house was 1 for and 1 not so. The taste is there, the "greasy" taste was also. I won't buy the product again.

Ex Output:
3


Ex Input:
With any low fat or low calorie food, you're going to sacrifice taste of portion size.  With this product, you sacrifice both.  It's a good idea, which was done well with the Oreos and others in this series of "100 calorie" snacks, but I think you're better off with a single cookie from the regular Chips Ahoy box than a whole bag of these.

Ex Output:
3


Ex Input:
These are by far my favorite chips, they are extremely crunchy (similar to other Kettle style chips), but it's the extreme Vinegar flavor that differentiates these from lesser fried potato snacks.  I've tried several other brands of Salt and Vinegar and none of them come close.

Ex Output:

5