Instruct: Classify Amazon reviews into positive or negative sentiment
Query: mummy tummy review

Some of the exercises in this book were good but Tupler made a number of comments about the negative effects of some pilates exercises. The comments were inaccurate and showed that she had a very limited and incorrect understanding of that discipline. She commented that the Pilates hundred will cause diastasis of the abdominal muscles. When done correctly in a neutral pelvis this exercise will actually correct diastasis. It will only make it worse if it is practiced incorrectly. Her lack of knowledge on this subject, that she commented on over and over, really made me question her knowledge on everything else.