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.

[EX Q]: These definitely do not feel safe. I was baking something at 400F and took the tray out and looked at the mitt and it was completely black where I picked it up..... NOT WORTH BUYING.
[EX A]: negative

[EX Q]: The Conditioner totally sucked, was not soft. Shampoo smelled good, I felt like it did not shampooed my hair, after rinsing felt like my hair was still oily, and not washed. I liked how it made my scalp feel refreshed! I won't be buying again!
[EX A]: negative

[EX Q]: I was exited to purchase this heater for my fish tank. The reviews are good and this is a great brand (I have other items in this brand and they all worked long-term). BUT, I was upset to discover that the heater quit working after only using it for 6 weeks. I was wanting to return it or exchange it but the ad did not give me that option. This is very discouraging!!
[EX A]:
negative