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

Ex Input:
Excellent product. I was having difficulty hearing and also getting a comfottable fit with the included ear hook that came with my Jabra JX-10 Series II Bluetooth headset. I removed the hook and attached one of the 6 gels that came in the pack to the headset and found that the volume increased 40% and I was able to achieve a comfortable fit. The headset is small enough and light enough that the gel holds the headset in the ear. I was about to give up on this headset (and all earhook type Bluetooth headsets) prior to getting the gels. If you are looking for a comfortable (and econimical) alternative for earhook type headsets, I strongly recommend that you give these a try. They are well worth the price.

Ex Output:
Positive

Ex Input:
This book was a wellspring of information for me as a newly diagnosed type 2 diabetic. Getting off the cycle of being told to eat complex carbs, seeing my blood glucose spike from doing just what I was told, and getting medications increased again and again, I read what Dr. Bernstein said with interest. After trying his recommendations I can say with no reservations that this book may have saved my life! I highly recommend it to anyone who has pre-diabetes or diabetes and hope that the general medical community opens their eyes. After only one day of this diet my blood glucose readings were close to normal, and continue to stay there, with less medication. My energy levels are high and I have felt better than I have in a long long time. Kudos to you Dr. Bernstein, for daring to say the truth! I recommend both his books and also Dr. Atkins Diabetes Revolution to anyone who wants to learn about diabetes and diet.

Ex Output:
Positive

Ex Input:
after baby #2 I knew I wanted to try binding as a form of getting my tummy back as soon as possible. I am so glad that I bought the squeem, it really does cinch your waist giving you an unreal hourglass shape. I began wearing mine 1 week postpartum and people just couldn't believe that I had just had a baby. Now that I am 7 months postpartum, I wear mine to the gym for extra back and abdominal support. It has really helped give me my old shape back and even seems to have nipped in my waist more than it was before!

Ex Output:
Positive