Instruct: Classify a given Amazon review as either positive or negative.
Query: disappointed

I have been waiting a long time to get this book, which I first saw online when I was researching black inventors. This books content was all of 15 pages of materials copied right out of the encyclopedia. The concise listing of black inventors is not there. You can obtain Henry Bakers listing of the black inventors, patent numbers and the date of patents FREE online. This booklet was not worth the money, nor was the information it contained original or rare.