Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[EX Q]: What am I reviewing here... this gizmo or the supplier, Eforcity? I never received this product after my order! After waiting and waiting I contacted Eforcity several times -- no reply. After a nasty letter from me Eforcity'r reply feigned lacking information about my mailing address!What a cop-out.I told them I would not pay for it, so Eforcity said they'd give me a refund, which has not come to me yet. I bought another product to replace this from Amazon which arrived quickly from Amazon.
[EX A]: Negative

[EX Q]: Like all of her Scarpetta mystery novels, Patricia Cornwell has proven again that she must have been one dynamite of a Coroner when she was practicing. She has a wealth of information in her books and it is so interesting to follow as she progresses to solving the mystery. I've never enjoyed reading as much as when I pick up a Cornwell novel.
[EX A]: Positive

[EX Q]: We have had this printer about 3 weeks and the cartridge already needs replaced. We do not do an excessive amount of printing, so I think that is a little too soon to run out of ink.Also this printer jams up very easily (one of the reasons I was replacing the last HP printer I had) I feel I have spent as much time fixing paper jams as I have printing. It is easy to fix when it does jam up, but a little frustrating that it happens so often.The print quality is good (just make sure you have the paper settings set correctly to the type of paper you are using!) and it does print quietly and is easy to operate. But overall I would not recommend it.
[EX A]:
Negative