Part 1. Definition
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Part 2. Example
I've read this book with much expectation, it was very boring all through out the book
Answer: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Part 3. Exercise
I am starting my fifth month of pregnancy and bought the pillow to get used to sleeping on my sides. At first, I was scared of the size and concerned it might bother my husband and my little dog that sleeps next to me. I tried it and absolutely loved it. My husband cuddles up next to it and my little dog uses the pillow as well and sleeps in it with me. We joke around about the size, but it is really comfortable. It is a must have during pregnancy.
Answer:
Positive