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

Ex Input:
I purchased for my guest room for overnight stays for family members.this holds up very well especially for grandchildren

Ex Output:
Positive

Ex Input:
This product requires a stereo player in which the balance is turned totally to the left. Most auto systems have that capability. However if you have Dolby or SurroundSound, it can be difficult (and maybe impossible) to play the cassette without hearing two recordings at the same time. Unfortunately neither the packaging nor the website will warn you of the problem. You therefore should think before buying. Once you have opened the packaging you may be unable to return the product.

Ex Output:
Negative

Ex Input:
I couldn't wait to get this CD,being a guitarist myself. Just give me straight Jimmy Ponder, not horns and other "jazz types". I am disappointed. Cuts two and four are the best. They are Jimmy. Too bad I couldn't have listened to cuts first, I would not have bought this CD. Sorry! The cuts of just Jimmy are great though, but too few .... :(

Ex Output:
Negative