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:
We have this model about a year now. It hasn't worked right from the beginning. We often had trouble closing the top. Sometimes it doesn't work at all. Other times it works like a charm. When it works like a charm, it's not uncommon to find coffee grounds in the cup. It's a mess. I bought the same model for the office. The experience was similar. Sometimes it makes a full cup of coffee other times it doesn't. Sometimes it won't even work at all. We have to turn it on and off and cross our fingers. A friend reports these problems as well. I agree with the reviewer who says, DO NOT BUY. A waste of money for the machine,for the K-cup that couldn't be used, and an exercise in frustration. We're in the market for a different brand. When Keurig first came out, they had the market. They have a lot of competition now . . . which hopefully will make it easier to find a machine that works well.

Ex Output:
Negative

Ex Input:
This was my first experience of a bad Darjeeling - before, I hadn't known there was such a thing. The first brew yielded a dark rust color tinged with olive-green. The bottom of the cup was invisible. The taste was sharp and astringent. Thinking I'd brewed too long or too strong, I set the first cup aside and tried again. And then again. A light brew of 3 minutes improved the clarity; however, nothing I have tried since has removed a level of astringency and a furred taste that I associate with lesser teas. The wet leaves are the typical size, light brown but unexpectedly interspersed with limp green squares. The aroma of dry tea in the bag reminds me of old hay - neither moldy nor spoiled, just old. In contrast, the Davidson's Keemun Conjou which arrived in the same shipment smells and tastes like delicious Keemun Conjou and nothing else. Given the price, I knew I was gamboling and consider this a lost bet. I have given the product two stars instead of one, because I haven't thrown it out (yet). I keep a supply of Lipton's bulk tea for emergencies such as long periods of unemployment, and I don't really need more emergency tea. Perhaps it will work for iced tea. By no means am I an expert, but I do value tea, and so I hope this opinion helps other buyers who are trying to decide between two Darjeelings. Davidson's ships quickly with value pricing, and so I am not giving up on the merchant. Just on this particular Darjeeling.

Ex Output:
Negative

Ex Input:
I like the concept of these natural, carbonated juice beverages and I really liked the black cherry flavor. But the Kiwi Berry flavor was too sweet for me. While the ingredients are only juice and carbonated water, I think that not enough water was added to reconstitute the juice to a good balance. With 33 grams of sugar in the 8.3 ounce bottle, despite being natural, there is still a lot of sweetness here.

Ex Output:
Negative