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

[EX Q]: The subject is trivial and boring. The writing skill mediocre.I was stuck in Sri Lanka and downloaded it by mistake when learning how to use my new kindle. Decided to take a look.Sorry, perhaps just not my type of book. It is no literature.
[EX A]: Negative

[EX Q]: I have only wore these boots a couple of times, so I may be reviewing them too soon. As other reviewers have stated they don't seem to need a break in period, but there is a certain "learning" period. I say this as a person who literally has worn nothing but tennis shoes for years. The learning is getting used to the extra weight and bulk on your feet. I bought these to be a part of my "bug out" plan. I will soon be going on a real hike on rougher terrain to see how they feel then. Plus until I have put many more mile on them to see how they hold up I can't say for sure how many stars they deserve. I give them 4 for now and assuming 200-300 miles from now they are still in good shape I would change it to 5.
[EX A]: Positive

[EX Q]: I bought these holders for my dad because he has arthritis in his hands & it's difficult for him to hold 15-21 cards at a time. We used them over the holiday and they were a great hit.
[EX A]:
Positive