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 ordered these shoes to replace the previous pair that had ripped apart at the sole. Clark said they did not make this shoe anymore, so I had to order them through Amazon. Sadly, the second pair ripped in the same place within 3 months. My son has since bought a similar pair from Sperry and they seem to be holding up much better.
Answer:
Negative