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: These chips are very good. Wish we could purchase them in our area. Great chance to try them in this offer.
Example Output: Positive

Example Input: This toy is not that great for my pug. He loves finding stuff in the little cups, however the yellow covers are impossible for him to get off. His mouth won't fit around them so he can't pick them up with his teeth, when he uses his nose to try to get at them the cups just fall back into place and if he uses his paws (that's when he's really frustrated) he winds up just flipping the whole thing over. I have turned the cups upside down so that he can grab at the edges and that works for him. However, it's not really a puzzle because he even figured out that if the cup is sticking up, something is in there. I even have a hard time getting some of the cups out because of the way it is shaped. It's not a bad toy as a starter puzzle but if your dog has done puzzles before, this one won't keep him interested. And if you have a dog with no snout, it's not really worth it.
Example Output: Negative

Example Input: They did a very good job with shipping the order quickly....Nothing like Ace Hardware who took a week to ship
Example Output:
Positive