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

Ex Input:
Good, sturdy platform for squatting under a barbell. Very firm. Laces are long enough to wrap around ankles, and back of shoe forms a fair notch to retain the laces and keep them from sliding up and off the shoes - would have been better had there been a rear loop. Shoes are better without the insoles because they put a spongy foam wedge under the heels. I replaced them with thin flat insoles from a pair of water shoes. One could cut the foam wedge and use the included insoles. There is no raised heel other than that foam wedge. They run true to size or slightly tight.

Ex Output:
Positive

Ex Input:
Considering how much bad music is out there these days, this was nice to come across. Covers a wide range of topics and moods, musicianship is pretty good. I'd recommend it to just about anyone. My tastes are usually heavier and more progressive - Rush, Dream Theater, Iron Maiden, Queensryche. But I like this disc too.

Ex Output:
Positive

Ex Input:
We got our PowerBook in July of 2003 and had to replace the Apple adapter twice. I finally got fed up with the flimsy cord and purchased this Macally PS-AC4 adapter and I am very happy with the quality of the product. We've been using this for months and the only complaint (which is why the 4 stars and not 5) is that we miss seeing the little light around the end of the cord that plugs into the PowerBook that indicates the charge status (the one that glows orange or green). I would highly recommend this replacement to anyone, as long as you can live without the status light. At this price, it is hands down a better alternative to the delivered cord.

Ex Output:
Positive