In this task, you are given books product reviews in English language. The goal is to classify the review as "POS" if the overall sentiment of the review is positive or as "NEG" if the overall sentiment of the review is negative.

folksy but conducive of thought crystallization . I found this book unsatisfactorily casual and slap-happy for the work of putative been-there-done-that expert with such lengthy tenure in and around things ufological.  Yet, by reading this, I did manage to concretize a philosophical system that has been emerging for years as I read one UFO book after another--while also reading widely in other things paranormal, as well as a spate of less abstract fields, such as history, science, linguistics, anthropology, and such.  Let us posit that aliens (1) exist; (2) have the technology to visit remote star systems; and (3) took greatly enhanced interest in earth only when it developed weapons systems capable of either harming other civilizations (i.e., in combination with its rocket technology) or of destroying itself (which would constitute a crying shame from the viewpoint of fundamentally beneficent aliens who respect other sentient life forms).  Keyhoe leads me to believe--amid his conspiratorial musings and his subtle hints at what was meant by what was really meant by what Mr. X thought that Mr. Y intended--that they are watching us and executing a hands-off policy until such time that we pose a direct, immediate danger to ourselves (this will occur long before we pose a direct and immediate danger to exocivilizations), at which time--Starfleet-style "Prime Directives" od non-interference notwithstanding--they will take whatever steps are necessary to ensure the harmonious continuation of our culture. Whether that means utterly conquering and enslaving us, or surreptitiously seizing control over certain key organs of our governments (possibly to include forging certain elements of the whole-earth government whose existence Einstein endorsed as a logical and necessary eventuality), or just providing cultural "guidance counselors," who can really say.  It is indeed food for thought to ponder the likely--well, the possible--archetypal alien ethos and surmise what it might intend for us and why it should, or will, occur when the time requires it
POS

Yum . This wonderful book is not just full of recipes, but full of memories. Any cook book can list ingredients and directions, but not all of them also contain stories about the recipes. Mrs. Small's Crab Cakes are delicious and I don't blame Dorothy Small for keeping it to herself until the very end.    Thank you, Lari Robling and Mark Thomas
POS

The book to read about the Siege of Yorktown . The Guns of Independence is one of the finest campaign/siege studies this reviewer has read on the Revolutionary War.  The volume covers the blunders committed by the British commander Lord Cornwallis and the, for once, amazing cooperation between the Allied forces under George Washington.    Of special interest is the attention given the physical operations conducted during the siege of Yorktown.  The author details the types of artillery used and the construction of entrenchments, redoubts and battery positions.  Photographs of the reconstructed fortifications help the reader visualize the action.  In additon, references to archaeological excavations are not only fascinating, but give the reader a look at the detail involved in siege warfare.         The author has done a superb job of research and his writing, though a bit stiff at times, keeps the reader interested.  The nuts and bolts of the volume are solid with crisp, clear, well-produced photographs and informative, nicely constructed maps.  This volume provides a solid education in the actions at Yorktown in September/October 1781, and for those interested in the siege, this is the volume to read.

POS