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: As with others, this was a great camera until the remove cassette problem appeared 8 months ago. Now it barely plays or records. I'm never buying another Canon and going back to Sony. BTW, the buzzing is the automatic microphone gain. If there's not enough sound to record it cranks up the input volume so much that you hear the tape motor.
Solution: Negative