Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Everyone should have this!

This is the best music ever for newborns. I have been an OB nurse for over 20 years and have used this tape in nurseries everywhere. It's great for preemies-it helps them relax and feel comfortable so they can gain weight. Regular newborns love it too. It always puts them to sleep. It sounds kind of like you are in outer space. A woman is humming quietly in the background with a lot of white noise and a whooshing sound. You may think this is dumb, but it is actually created from audio taping inside a pregnant woman. This is what your baby ACTUALLY HEARS inside. Your baby does NOT know that you are singing cute lullabies or getting smarter because he is listening to mozart. This music is a great way to make a newborn feel safe and warm and content.