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

Ex Input:
I've noticed very little degrading of the sound, if at all, and this is rare in most extensions. The cord is thicker than usual for both the positive and negative polarities - a separate wire for each - and I'm quite pleased with this, will perhaps get another because of its thickness. I now have great headphone sound within a twenty-foot range - just what I was looking for. Even if you don't need 15-feet of cord, I would recommend this over the shorter 10 foot cords where the wiring is about half as thick and not likely to hold up over time...I subject all my electronics to heavy use. Plus, the best extensions for Grado headphones go for $40, and I'm quite satisfied saving over $30 by having this one.

Ex Output:
Positive


Ex Input:
All the other bad reviews are good enough for me. I'm just adding my vote on this one as a one star. I can't fathom how the ones who ranked it as 5 stars saw the same movie as I did. The best thing about this movie was returning it to the Red Box I rented it from.

Ex Output:
Negative


Ex Input:
This is my sixth edition, and this book is still a great way to get ready for the season.But the writing has taken a distinct turn toward the serious. The essays and player profiles are still chock full of relevant numbers and piercingly well-considered arguments, but this year they are also somewhat...I really don't want to say it...tedious.What was once a light-hearted romp through some serious baseball thinking is now rather dense and dry. I'll buy again next year, but I hope somebody sends them a keg of Lighten-Up.+

Ex Output:

Positive