Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good, if not for the errors.

I'm actually studying by this book and I noticed a lot of errors in it. Specifically on page 50 I started looking for someone on the internet saying the same thing, because since I'm only learning, I'm not all that sure. This is confusing.Though I like the way the material is explained. I wouldn't have spotted the errors if not for the good explanation, would I? :)