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]: I have very hard water where I live. I use this once or twice a week and it really helps remove the build up on my hair. I'll definitely keep using this.
[EX A]: positive

[EX Q]: Brought this hairdryer after reading good reviews on this product. The hairdryer arrived today after waiting for it for three days which is fine. My daughter just plugged it in to dry her hair and the hairdryer is dead! We tried different outlets but the dryer won’t work. Such an inconvenience! I am very disappointed! Returning it! :(
[EX A]: negative

[EX Q]: Says it was delivered 3 weeks ago and still no sign of it. And there’s also no way to contact the seller as their company does not except emails. I hope the shipping and delivery information was wrong because I ordered this well over a month ago
[EX A]:
negative