In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: We have about 10 spinners in total but this one is the best. My 4 year old collects them. This one has a long spin time and lots of light patterns. Cool both in light and in the dark. I'm so glad I got this spinner for him. Well worth the money.
Example Output: positive

Example Input: I never wanted to be a dog parent that needed one of these, but here I am. I have a year old puppy that will not listen when it comes to eating things he's not supposed to outside. It's super easy to use and I love that there are different settings. I mostly use the vibrate but when I do need to use shock I have to use at least 80 for my dog to even notice it. My use of the collar is to have my dog drop whatever is in his mouth from a distance so a lower setting might work for your dog. There's a charge port to put the collar and remote on which is awesome. The collar is also super long but you can trim it to fit.
Example Output: positive

Example Input: I've had my printer for years, and I use dozens of the same type of cartridge per year. This time I ordered at 2-pack of HP 62 black ink. Strangely, the first cartridge is fine, but the second one cannot be accepted by the printer. I've tried other cartridges to ensure that it is only this one that is faulty. Every time I try to install, printer tells me to "remove and replace to insure proper installation." Again, it's not my printer. It's just the ONE cartridge. Bummer. Ink isn't cheap. Furthermore, the return window closed (it's been exactly a month), and of course I couldn't have known that the 2nd cartridge wouldn't work until now. I feel Amazon should replace with a working cartridge under these circumstances, but apparently it's too late. Crummy.
Example Output:
negative