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: Our family has liked every other flavored we have tried (BBQ is the best). We like sweet potatoes so we assumed would like these pop chips.  I was wrong, no one in the family likes the sweet potato pops chips.  I highly recommend you go to a store that sells the sweet potato before deciding on purchasing a large quantity.
Example Output: Negative

Example Input: I tried the product for a few days. It did not help me with any Lucid Dreams at all. I tried it for few days, not every day. Nothing happened. All I got was a headache the next day..like a hangover headache,  It tastes bitter like others have mentioned but nothing that I can't handle. The bitterness was no big deal for me.
Example Output: Negative

Example Input: I was so disappointed in this coffee. I guess I was fooled by the "Oooh it's more expensive than the others, there must be something special to it! I have to try it once!"I never get taken in by price!! There was absolutely nothing to it that was any better than other K cups from other brands that sell Colombian coffee. Don't waste your money on it, not worth it...
Example Output:
Negative