TASK DEFINITION: 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. 
PROBLEM: For those who love salt and vinegar potato chips, this is the one to choose. The flavor is zippy and tart, with no unpleasant chemical aftertaste like the less "natural" versions of this snack. The 2-ounce bags are just right to share at lunch. The chips are a little greasy, and that's why I've given them 4 stars instead of 5.

SOLUTION: 4

PROBLEM: I like the taste, but the light roast was too light for me.  I find myself brewing smaller cups of coffee, hoping for a stronger taste.  Next time, I'll go for a medium or dark roast.  I think it was the medium that I had before and I really liked it.

SOLUTION: 3

PROBLEM: I have loved ketchup flavored potato chips since I was a kid and spent my summers at my grandparents in Canada. This is a very popular flavor there and seems to be always available. I recently got back from a trip to Montreal, where I ate at least a pack a day. I decided I really wanted some around and was happy when I found these on Amazon. Unfortunately, the flavor is nowhere close to the brands I've tried before. There's a sort of smoky, barbeque sauce thing going on. Not that they're as good as BBQ potato chips (which I love), they just don't taste like ketchup. I tried to get through a bag over a couple of weeks to see if they would grow on me, then just threw them all out. Yuck!

SOLUTION:
1