Detailed Instructions: 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.
Q: Review is solely based on installation. This is HORRIBLE. I have never owned a portable unit before and the instructions are horrible to follow. Panels are only designed for a certain length window and won't customize to your window height. Ridiculous!
A:
negative