Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Hopeful for those who seek harmony in the world . I wouldn't recommend this to anyone who thinks that religious wars, repression of individual spirits or rape of the earth are good things. Those who seek peace, harmony, celebration of each of us and respect for our earth will find this hopeful
Solution: POS
Reason: The overall sentiment of the review is positive as the reviewer mentions positive expressions such as 'hopeful', 'will find this helpful' etc.. Hence, the label is 'POS'.

Now, solve this instance: Entertaining and informative look at crossword construction . In an age when the advent of computer-generated sudoku seem to be taking over, Matt Gaffney responds with this very eloquent and entertaining exploration of standard crosswords and how they are created. Gaffney, an experienced puzzle constructor and editor, offers glimpses into the history of crosswords and their attributes, but the real strength of his book is its insight into the effort that constructors go in making gems for puzzlers. He discusses the way that puzzle themes have evolved over time, the limits of themed and non-themed puzzles, challenges that constructors have posed themselves, and how new-wave constructors have pushed the boundaries of puzzles using technology to help them fill grids and using their twisted brains to find ever-more-intriguing clues. This book is well written in a conversational style filled with humorous anecdotes and includes interviews with many editors and constructors. Of most interest to me was a chapter in which four constructors are given partially completed grids and are asked to use their brains or computer assistance to generate "fills" that they think are best. The results are beautifully divergent, and the way that judges viewed them and rated them points out that the nature of "beauty" in crosswords is still a contested area. Like Amende's "Crossword Obsession" and Romano's "Crossworld" this book focuses on a very small field, but the thoroughness and humor that suffuse it make it a strong addition. This book will offer you insights into puzzles if you are a novice and will generate laughs of recognition and empathy if you are an expert or constructor. I recommend it. Will J
Student:
POS