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.

Example Input: flexible microwave lids in graduated sizes that fit inside one another through the central button handle - work well, excellent price. Anticipate they will be durable.
Example Output: positive

Example 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.
Example Output: positive

Example Input: They put these horrible stickers on the switch itself that leave residue behind when peeled. Then you have to spend forever removing it, or just have your new switch look like trash.
Example Output:
negative