Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't Answer Why

After reading the reviews on this page I had high hopes for this book. It has been a great source of information about how your baby is developing week by week.However, it is severely lacking the answer to one simple question: why? As in, your doctor may recommend you avoid this or that, here's the reason. Instead, the book asks you to simply accept the answer and in doing so underestimates the reader's intelligence.Further the index is lacking, expecting the reader to look up things such as "ectopic pregnancy" rather than "tubal pregnancy". I was disappointed that I first had to google my question before being able to read the answer in my book.I expected more from the Mayo Clinic.