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

[Q]: This book was brand new when I received it. However, it did not arrive for 20 days after I ordered it.
[A]: Negative


[Q]: I ordered this DashMat for a specific vehicle, it was not the correct mat. I returned the original one and they sent me an exact duplicate of the wrong mat. I can't seem to get the correct one and therefore it sits in a box!!!!!!
[A]: Negative


[Q]: I'm sorry, but these are horrible for teaching belly dance. Atea is very stiff & stilted & her chorus dancers CANNOT dance! It is absolutely Scary!I have never seen anyone (in person or in a video) dance the way that they do in this video. If you are interested in learning to dance, please, choose another instructor!
[A]:
Negative