Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

[Q]: Giraffes are my favorite, but besides that, it is so much more convenient than my last case. I love the swivel feature.
[A]: Positive Review

[Q]: The product exceeded my expectations. With my computer on high performance mode, the battery still lasts more than four hours.
[A]: Positive Review

[Q]: Possibly the worst product I have ever had the displeasure of buying. Within a month, the wire near the connection to the laptop frayed open. It does not charge the battery very well and slips our of the laptop frequently.
[A]:
Negative Review