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]: Its my understanding (based on discussions with material scientists!) that nylon releases toxins when put into hot water..so..whats the deal with the nylon tea bags?  This wasn't stated anywhere or I wouldn't have bought them.  The company told me they wee FDA approved, but the FDA is only worried about things that will kill you in the short run, or that have very high levels of dangerous chemicals.  Trace amounts are permitted.  Considering how much tea I drink, I'd rather not add toxins to my body every single time.  In contrast Might Leaf, while they have similar looking tea bags, theirs are not nylon and are biodegradable in addition to not being dangerous.  Very disappointed in this product.  They should at least have been upfront about the nylon bags so concerned people can avoid buying them.
[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]: This bags are very difficult to open with the aid of some tool, such as scissors, don't even try without scissors.  They are crispy and taste like chips that aren't advertised as being salted. They definitely aren't healthy, because I can feel the grease all over my fingers when eating them, and I can see the grease at the bottom of the bag, too.  They are high-quality chips, and deserve to be put on your table.
[EX A]:
Positive