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]: This is the second power bank I bought in past two month. The first one turns out the capacity is too big to travel by air. I got this one under 10000mAh. Tested a couple of times. Works great. Built in cables very convenient. Comes with a storage pouch good for travel.
[EX A]: positive

[EX Q]: Ive been looking for a little something xtra. To help me through my workouts. I do orange theory and bootcamp. These have helped me keep going and not feel so sore.
[EX A]: positive

[EX Q]: This is the second time I bought this brand necklace. This necklace didn't disappoint me. The quality is still so good. I like the texture. I am very happy to recommend this brand to my friends.
[EX A]:
positive