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.

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

The connection with my iPhone was very smooth and easy. There is no lag and the sound quality is superb. It last days with full charge. Looks very sophisticated.
positive

Ordered about 8 back in March and 2 have already gone out and no longer work! Amazon wants me to pay to send them back for replacements...and when 2 more go out...then 2 more...?! Nope! Just save your money and don’t buy these!

negative