Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bull, you could not use this book to make anything.

It should be titled: How you could make home electricity from wind, water, sunshine, if we had given you some plans.The author does a good job of covering the theory behind wind and the electrical conversion that is necessary to use the power in a home, but little effort is given to actually tell you how to build anything. He goes as far as to say; almost any motor can be used as a generator, but then does not actually suggest this is what you should do. I think we all know how a generator works,, what we want are plans for a generator that works well and that we can build.