Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Makes you feel great

It is a pretty challenging workout for a complete beginner, I couldn't finish it from the first attempt. Sometimes Jennifer Kries moves too fast for a novice follower. But as you do it again and again it becomes easier with each time and makes you feel terrific. No back pain as a result, great (very gentle and very effective) flexibility workout and most important - great relaxation techniques. Really worth trying it!