Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example is below.
Q: I've read this book with much expectation, it was very boring all through out the book
A: Negative
Rationale: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: I bought this for my 10 year-old son. He's an experienced builder, having put together many lego creations and k'nex kits with little or no help from a grownup. He couldn't assemble the tanks. The green collars that are used to connect tank sections are very tight (to keep water in, I suppose), and he just didn't have the coordination or strength to push them together. I was able with much, much effort, to get two sections of a tank connected, but I couldn't even get the top on.I called the help number and left a message. So far, no response.The girders are also not very well designed and come apart with a little jostling.I wish I'd never bought it. My son really, really wants to see it work and so far we've spent many hours to no avail.
A:
Negative