Instruct: Classify the given Amazon review as either positive or negative.
Query: Good Intro to Yoga, but Boring

Although I found this video to be just about the most boring excercise video I've ever used, I think it is actually very good for beginners. All of the poses are explained clearly and slowly, with suggestions for adaptations due to weak knees, etc. If you can manage to get through a long boring hour, and stick with it, this video will really help you learn some basic yoga. Not to mention that you'll feel great.