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

Ex Input:
I haven't been able to watch this much because the DVD won't play in my normal (otherwise functioning) DVD player. It will play on my computer's DVD player, but without sound. The DVD will play fine on my laptop, but that's not a screen that's very conducive to practicing in front of. The DVD does play on my friend's DVD player for some reason. Also, I bought volumes 1 and 2 and both are so short, it seems obvious that they could have put all of the lessons on one DVD. I guess they knew they could make more money by making us buy both.

Ex Output:
Negative


Ex Input:
This is the WORST CD-ROM game I have ever seen! My 7-year-old daughter longed for this game all Christmas season and she is bored out of her mind with it after one hour. It is slow, skippy, etc. running on a new computer! Don't waste your money like we did, skip right over this dud.

Ex Output:
Negative


Ex Input:
Don't waste your money. If she had been my instructor I would have asked for my money back

Ex Output:

Negative