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.

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.
positive

Being a contractor for 25 years I know how to calibrate a stud sensor... this is the biggest piece of junk I've ever bought!!! I wished I could get my money back!!!
negative

My golden has several allergies and the other limited ingredient, fish dog foods were very high in calorie. This one he tolerates well and enjoys eating.
positive