Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
i do not use these for warming the food. i did try that once and it was just a pain. i purchased the bowls because they are divided and stick to the high chair. so they are great for that, but i would not recommend getting it if you are just looking for a warming dish.
Answer:
Positive