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]: I purchased this one after I found out the 2 others I purchased from an on-line pet store were going to take 3-4 weeks to get to me. With a new puppy I needed one asap. So I purchased this one. What a disappointment! The "mesh" net was thin and easily ripped by puppy claws. There were NO directions with how to place it. The wall mounts were weak and fell off after one day. I was so upset thinking that the other 2 were going to be the same way and couldn't imagine why this net was highly rated. WELL when the other 2 came they were of much better quality. The mesh net was strong and solid, the wall attachments were big and once I stuck them on the wall there was no getting them off! There was a nice 1 page explanation of how to place the wall attachments to assure the gate worked best. WHAT a difference! The puppy has pawed at it several times and has not ripped it nor has the pressure he placed on the mesh torn the wall attachments off the wall - BOTH of which happened with this cheap version. Buyer BEWARE!
[EX A]: negative

[EX Q]: the reason why i bought this cable was because my parents needed one to reach across their room. unfortunately, it worked for only a week before i stopped charging anything. i promptly returned it.
[EX A]: negative

[EX Q]: I bought this assuming it would be firm, as the word "Firm" is explicitly in the title. I need a firm mattress or else I am unable to fall asleep and my back aches. This mattress is not firm at all. It is the softest & squishiest mattress I've ever laid on (and not in a good way). And because we removed it thinking mattress from the packaging and expanded it, we were unable to return (no box large enough to fit). Total waste of $350. Again, steer clear if you are looking for a firm mattress.
[EX A]:
negative