Instruct: Classify a review into positive or negative sentiment.
Query: Great Teaching Tool

I took lessons for 3 years on the Long Yang Form. Over the years I didn't practice and needed review. Classes I signed up form were disappointing, DVD's worthless as they showed the frontal view which is worthless when trying to learn Tai Chi or anything else. Excellent instructor, great pace of instruction. Best DVD available for those who seriously want to learn Tai Chi.