Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You cannot trust the pronunciation instructions.

This book is good for learning basic Vietnamese vocabulary for the price and size.However, I found a few grammatical mistakes.And the pronunciation instructions are horrible. For example, I don't understand why all the beginning c is instructed to pronounce as g. In fact the c sounds k. The pronunciation of "cam on", thanks in English, is shown [gam urn]. If you say like this, Vietnamese people never understand you. I have tried it already. My husband is a Vietnamese who speaks tieng Viet.