Instruct: Classify a review into positive or negative sentiment.
Query: Very dissappointed

I wish I had read other peoples reviews before I bought this product. I purchased it because of the name. I thought it would be more accurate. Not only is it very inaccurate, 9 times out of 10 it just says error. We have tried every different way to see if we were doing it wrong but we get the same results. It has to be the worst thing I have ever purchased.