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: Terrible customer service, at first my safe was supposed to arrive on the 5th, then It was the 8th, then the 14th, and now I'm being told I have to contact the shipping company to find where my order is??? DO NOT BUY FROM THESE PEOPLE. I also found out the they just bought it from Wal-Mart and had the shipping company pick it up. I could have just drove to Wal-Mart and bought it myself to save all this headache!
Example Output: negative

Example Input: I got these headphones for two reasons: 1. I wanted something to put in when I ride on my indoor cycle trainer in the winter and watch movies. 2. I was sick of my headphone cable getting caught on stuff at the gym. These headphones have exceeded my expectations. They sound surprisingly good and connect easily to my iPhone. I haven't had any issues with connection dropping and the battery lasted a lot longer than I thought it would. Please note that I am rating these based on what they are, and not on what they are not. These are not audiophile headphones. They don't sound mind-blowingly good. In my opinion, they sound better than the EarPods that come with my phone. Not way better, but better.
Example Output: positive

Example Input: Used once and my dog was able to work his way out of it. Probably good for barking, but my dog gets anxious and tries to bite with nail cuttings and it didn't do the trick for him, unfortunately. If you need a muzzle for biting, I would go with a basket muzzle instead.
Example Output:
negative