Instruct: Classify a review into positive or negative sentiment.
Query: Huge disappointment.

I wanted to learn some Japanese slang. I have about ten different Japanese phrasebooks and dictionaries that I use very often. [ By that, I mean daily. ] This book is NOT one of them! The author seemed like just some guy who thought he'd try to brag about going to Japan.. So that was distracting enough. But I bought this before I really knew the difference between female and male sentence-ending particles. He never explained which gender said what. Now that I know, I'm even more angry that most of it that wasn't gross was meant for men only. So, if you're a man who isn't a complete jerk, or if you're just some chick who loves the Japanese language, like me, do not get this book. The only phrases for women make us all look bad!