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: I bought this for my 4 year old daughter for her birthday. She loves rockets and I thought she would enjoy it. The pump is total junk and could not even pump enough pressure for a single flight before it broke. I spent an hour trying to fix it and the highest I've gotten the rocket to launch is a couple feet! This resulted in my daughter crying and the rocket getting thrown away. Do not buy this one!
Solution: Negative