In this task, 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.

Ex Input:
I haven't used these products yet, the raincoat used before was very heavy. It's very inconvenient to put on. So I tried this raincoat, it feels great to put on. There is no sense of obstructing action. When I opened the package, I found a variety of raincoats in different colors, each of us can choose the color we like. I think we can take it with us on the field trip. Because it was raining hard days ago, it was I who carried a raincoat like this I won't get caught in the rain, I don't even feel it. It's a great feeling. A raincoat is long enough, it won't get your knees wet. That's not what other raincoats can do. So I suggest you take a raincoat like this. It won't take up your space and it will bring you convenience.

Ex Output:
positive

Ex Input:
I got two bottles for my newborn with no issue. On the third bottle, discovered a dropper that wasn't built into the cap. Not sure if it's a defective batch or what. (Which means you'd have to wash the dropper every time... not ideal at all.) I submitted for a return/replacement and the fourth bottle I got had the same issue. If this is just a new design, I'll definitely have to just switch brands. :(

Ex Output:
negative

Ex Input:
It was very well packaged, the matress was well wrapped and compressed into a small roll, after unpacking, just allow a few minutes for it to expand. I would recommend carry it to the room before unpacking because once it is fully expanded, it becomes much bigger and hard to carry. It is a great mattress, the firmness level is just right - firm but not too firm. Seems well made and no off-gassing. Overall I'm very pleased.

Ex Output:
positive