Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: This heater was used in a playroom in the basement. I loved the wheels because I could easily put it away when the kids were in the room. But the smell of oil was so strong I decided to return it. I called DeLonghi customer service and they told me any oil filled heater will smell like oil - especially when in the MAX setting.
Solution: Negative