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

Input: Consider Input: I received my new Rhomba, and was all excited to open it and try it out. I open it and go through the quick setup guide and plug it into a USB port on my pc so it can charge up. As I am waiting for the unit to charge I start reading through the manual and come across the following message... The cables that come with this unit contain LEAD which has been shown to cause CANCER and it is strongly suggested that you wash your hands after every time you touch them....Say What???!!!! I fired off an email to Creative asking them to provide a little more clarity on this statement with no response. Needless to say I am returning the unit.

Output: Negative

Input: Consider 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.

Output: Positive

Input: Consider Input: I'm a late comer to Terry Pratchett but have utterly gotten caught up in the world he's created and the incredibly intelligent books. While I greatly enjoy the book itself, I was highly disappointed with the ebook because it is missing numerous pages in the version for the iphone. Unfortunately I passed the deadline for a return. Missing one or two pages is not appropriate but not a big deal. There were at least 4 places that were missing 4-6 pages in the iphone version.
Output: Negative