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

Now, solve this: Well where do I begin? After a month of use, the battery stopped working. Contacted Canon via email. They replied battery is not under warranty. Would you like to buy another one? Please.6 months later. I started transferring video to my computer only to find out this stupid camera eats tapes. I have lost two tapes so far. One of them was my son's birth!!!!The eating tapes issue is a major problem with this unit. They have known about it and continue to ignore it. Do a search on "zr40 tape problems" to see what I am talking about. There are even more results on sister product, zr10. I will never buy a product from Canon again. They are idiots for doing this to their customers.
Solution:
Negative