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 Q]: I ordered this saffron after looking at seller feedback and assumed that since this is expensive it will be premium quality. But only after i put it in water for sometime, then the color of the flakes changed, and I realized that its a fake one. Dont waste your time on this.
[EX A]: Negative

[EX Q]: 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.
[EX A]: Negative

[EX Q]: These are so nice and creamy!  Usually I don't justify buying k-cups for things like cocoa that you can get cheaper in a packet, but this is so convenient and very good tasting .. way better than most powdered cocoa packets I've tried.  As far as price comparison, it is equivalent to gourmet-types of cocoa that would easily cost $1+ per packet.  I also like that it comes in a variety pack with 3 flavor options.  Highly recommend
[EX A]:
Positive