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]: I have purchased several herbs from Frontier which have been of good quality.  Thyme leaf is always one of the most difficult to purchase due to the likely chance of recieving more stem than leaf.  This thyme leaf purchase was of average to good quality.  I did have about 30-70%, stem to leaf cut in the package, so I was satified with the selection.  When I dry my own thyme leaf, I usually do about the same or a little less stem to leaf ratio for cooking use.  Stem of the thyme leaf are just as favorable as the leaf and can be used to cook with successfully.
[EX A]: Positive

[EX Q]: I order these olives a lot. They are un-like any other olives out there. The subtle flavors of the brine go great with cheeses. One of my favorite appetizer treats for guests.
[EX A]: Positive

[EX Q]: After years of using synthetic sweeteners like Equal and Sweet N Low, I realized their long-term effects and wanted to find a good alternative. NuStevia was a lucky discovery. It has virtually no bitter aftertase, it's all natural and I've been using it exclusively for more than a year now. It works in both hot and cold beverages and comes in bulk and in packets for portability.I haven't used it for baking and probably won't because the chemistry of most recipes depends on sugar or something similar to get a good effect. However, for daily use in beverages, this product is very good.
[EX A]:
Positive