You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: Oh my gosh, is this good!  Like most people, I've been eating ketchup my whole life and never really thought anything about it.  Then Hubby brought a jar of this home.  The tomato flavor is amazing.  I will never buy store ketchup every again.
Example Output: Positive

Example Input: This is the second "Tug-a-Jug" food puzzle I've purchased for my wire fox terrier. The first lasted about five months until she chewed through the rope. But this toy kept my dog more occupied than any other food puzzle I've tried, so I decided to purchase a second one. My plan was to put this one away as soon as my dog was done with her food so she wouldn't "play" with it and chew through the rope. So in other words, I blame my dog's destructive terrier prowess on the demise of the first toy rather than the manufacturer.  But after just one week of use for the second toy, the bottom part where the end seals onto the main container literally cracked and shattered into many pieces when I was sealing the toy.  My dog may chew through ropes but she's not that rough with toys, and I was using normal strength to twist the end piece on, so I'm pretty sure this one was a dud. But after that, I'm totally done with this company. The shards that came off in my hand were tiny and sharp enough that if just one shard had broken off without my notice and go mixed in with my dog's food, she probably would have ingested it and had internal bleeding.
Example Output: Negative

Example Input: I tried to "cook" 6 different bags of these.  Only a fraction of product "popped up".  The ones that managed to pop tasted overly salty and had an unusual flavor.  Unfortunately, they were not returnable, so the rest will be going to the trash.  Waste of $$$.
Example Output:
Negative