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.

[EX Q]: Just opened my plastic package because hard to see if center pin was copper as pictured in ad.. sadly it was not. By the way, do not tear open your package because it states on the package,"No returns if bag is open" what a waste, I should have just driven to an autoparts store.
[EX A]: negative

[EX Q]: Just used this on a 700 mile trip everything was going good. If I saved a clip I could pull it up on memory no problem. Night time came and noticed it didn't switch to night mode on its own you have to manually do it in the settings, no big deal. Problem is there's a finger smudge on the inside of my lens that only shows up at night. Then I get home plug the camera in to my laptop and no files? Take the sd card out and put in to my card reader and nothing. I will get a replacement and update my review..
[EX A]: negative

[EX Q]: Just used them to install hardwood floor across a 3000 square foot house. Saved my knees and I am a big guy! Not only that some staples and nails on the floor and these stopped them from going into my body. I didnt even realize it happened until I took them off when I was done for the day. Very impressed
[EX A]:
positive