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.

The item was delivered in good condition but when used on two different USB ports on my Samsung flat screen tv to power a fire stick device ,a message was displayed saying not enough power for this device.
negative

First of all, they took a long time to get to me. They come with no instructions. No way of knowing when they are fully charged. Charge doesn't last long, at all. And they scratch very easily. Very disappointed with this product unfortunately.
negative

I always worry that something I will use to breath thru is clean. This is packed as good as I would get from any of the other suppliers I have went to to get supplies. No worries.

positive