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: When travelling I seek to minimise the weight and number of items I bring. Technology is one good place where gains on this front can be made. This product bundle is a complete joke. Why so many pieces? Why bring all of that excess stuff? If the answer is "just take the ones you will need for a given trip" then why not just buy some cheapo country/ region specific solution? If you are serious about travel with your electronics (not just Apple) check out this:Kensington 33117 International All-in-One Travel Plug Adapter. It has covered me in Asia, Australia, and Europe and there is only one piece to deal with.
Solution:
Negative