Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Summarized in a few sentences...

I can summarize this book in three sentences, saving everyone's money.1) China has a lot of people and those people need raw materials (commodities). I feel like the 214 page book would be about 100 pages if he would just make this one statement and move on.2) Commodities go in 17 year cycles and we still have awhile to go.3) Buy commodities because they are another media of investment that have proven to have good returns and diversify a portfolio. (Negative correlation to stock market.)If someone were to try to use this book to trade Futures they would have a very basic knowledge and most likely lose money. There are better books out there.