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]: I purchased in June and hired an HVAC professional to install. After several calls to Nest support, it was determined that we had a faulty plate so we attempted to install the 2nd and again after several calls and a couple of hours, determined that that one wouldn't hold its charge long enough to install. In both cases, the window to return them had lapsed so I am out of $400 plus and then had to buy a regular thermostat to boot! Lesson here, do not buy this product until you are ready to install it!
[A]: negative


[Q]: Perfect for my vehicle storage needs, and no slip bottom makes it a lot easier driving around without it sliding back and forth like my old container. Strongly recommend it.
[A]: positive


[Q]: I bought this primarily because I have osteopenia and need a good calcium supplement but I also love it has Vitamin D as well as some magnesium. A friend of mine used this for her disabled child and reversed his brittle bone disease.
[A]:
positive