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

Ex Input:
I went to two stores trying to find the exact brand name products that Sandra Lee insist we use. Frustrated, I asked the store mananger who told me that the products I was looking for, Campbell's fat-free mushroom soup and Jello refrigerated vanilla pudding cups are no longer available in my area.Why make such a big fuss about using this or that brand when they aren't even available? I won't waste any more time travelling around town looking for the exact brand names needed to make the recipes in this book.I have better things to do! Maybe this book needs a "use-by " date before even more products become obsolete.

Ex Output:
Negative


Ex Input:
My husband and I were not able to attend a birthing class, so the doctor suggested we rent/buy a video. We decided on this one, and although the 'teacher' was a bit corny it was helpful. I especially liked that you could fast forward and skip parts! All in all it was a worthwhile purchase and proved helpful to us both.

Ex Output:
Positive


Ex Input:
I bought the Soyo 24 inch monitor based on a $100 reduction in price at Office Max and what appeared to be a review on the internet. Previously I had a Viewsonic 17" LCD monitor which was pretty bad too. The Soyo has a bad stand that is supposed to be adjustable, but I could not do it and had to prop it at an angle with a book. The User's manual is nearly incomprehensible. The speakers have to be the worst sounding ones I've ever heard. I am going to repack and try to return it and buy something better ever if I have to pay more.

Ex Output:

Negative