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

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: I used these once then used a Kleenex to wipe one lens that was a little smudged. I have microscopic vision and I noticed it was scratched AFTER I used the Kleenex, so to be sure, I used it again and sure enough, it scratched the lens some more. I compared the 2 lenses and the other lens looked pristine, whereas the one I used the kleenex on was scratched all over! Very low quality lenses! Unusable after one use!
A:
Negative