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'm a big black tea drinker and have tried a lot of different brands out there, and I find that PG makes the best black tea. It's nice and strong, not like crappy Lipton black tea. We've been loyal to the PG brand black tea for over a year now - it's a little pricier than other brands, but definitely worth it if you enjoy black tea.
[EX A]: Positive

[EX Q]: Bought this product as a gift for my relative in Asia but was ashamed that was told by my receiver that it has been expired 3 months ago. It a waste of my money whereby I can't make refund due to product is not with me.
[EX A]: Negative

[EX Q]: These are healthy and my mixed Llasa, Tibetan Terrier adores them. And they are healthy and his breath doesn't smell and his teeth are in good shape because of such products. A great healthy product.
[EX A]:
Positive