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 Input:
I have recently been on a low carb diet, as I find that I can no longer tolerate even natural sugars like agave, honey, and dates. These raise the blood sugar which spikes the insulin, a hormone whose message is "store fat!" Insulin also causes the kidneys to retain water and therefore I would bloat from a high carb diet.  My dilemma is that I love sweets--and now it is not a problem, thanks to products like stevia, a natural plant that has safely been used in parts of the world as a sweetener for hundreds of years. It has no calories and no impact on the blood sugar (although for some people there might be a bit, as the brain is tricked into thinking it is getting sugar). Stevia used to be legal in the USA only as a cosmetic product because of politics: companies that made low calorie sweeteners such as aspartame did not want competition. Yet, aspartame gave me headaches and even sometimes symptoms of multiple sclerosis. So I would use stevia at times, but the aftertaste was bad--and to be honest, I wasn't too crazy about the "during taste" either.  Then I tried NuNaturals. This product is awesome and like no other stevia I have tried. It is not only delicious but also has no aftertaste (unless you put in way too much--a common mistake by people new to this). It comes in tablets and in powdered form (in a bottle or handy packets with individual servings). It also comes in alcohol-free liquid form and even in vanilla flavor. Unlike aspartame (which becomes even more toxic when heated) stevia can be used in baking. NuNaturals has a stevia baking blend just for that. (Since I am a raw fooder, I can't tell you how it tastes, but I am sure it is good, judging by their other products.)  Thanks to these great products, I can do a low carb raw diet but not be deprived of my sweets!

Ex Output:
Positive


Ex Input:
I have been giving these chews to my Mini-Pincher and Mini-Dauchand for the past 3 years to help support their joints and hips.  The last batch I bought is darker in color to the point of almost being burnt and smells a lot more.  It made my Mini-Pincher sick to the point of vomiting and liquid stools.  I am going to shop for a better product that is made here in the US . . . I have been looking at GNC products for Dogs and that is probably the route I will take.

Ex Output:
Negative


Ex Input:
I have tried many different protein powders over the years, and while it is hard to write a review based on taste alone (since everyone's taste is different), I'm going to go ahead and say this is the most rancid tasting gunk I have ever had the displeasure of putting in my mouth.  I mix my protein shakes with a hand blender, so I rarely have any mixing problems - and even this protein mixed well.  The fun really began when I tasted it.  It tastes sour and acrid at the same time, absolutely horrendous.  I could not finish the shake I had mixed up, and had to wash my mouth out with apple juice to get that sick taste out before I could actually eat or drink anything else.  This is a terrible protein powder from the standpoint of taste, in my opinion.  Of all the types I have tried, which is many, this has taken seat as the new "worst" one.  FYI, I had ordered this with another brand because I am testing egg protein powders due to casein sensitivity.  If anyone has an egg protein powder recommendation, PM me.

Ex Output:

Negative