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

Ex Input:
Felt great until it dug into my waist while sitting causing damage to my surgical site. Now I'm in pain with and without it on.

Ex Output:
Negative

Ex Input:
Product received timely. The plug in feature is favorable in that there is no concern of battery failure. Product is easy to use.

Ex Output:
Positive

Ex Input:
I found this tape very disappointing, it was fun to watch once, but the amount of information provided was very small and too choppy. There are many belly dance instructional videos available which are more interesting, better taught and more informative about how to dance and which provide you with a workout as well. My recommendation is to keep looking.

Ex Output:
Negative