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

[EX Q]: Felt great until it dug into my waist while sitting causing damage to my surgical site. Now I'm in pain with and without it on.
[EX A]: Negative

[EX Q]: this book rocks, people! however, i got reali confused withnyala's character. what's up with her aniway? split personality?aniway, i reali loved rashel and quinn though they were always at each other's throats!! enjoy this book! p.s : if u're reading these reviews to decide whether it's worth ur money, i tell ya, get it QUICK before it's all gone!
[EX A]: Positive

[EX Q]: Great value for money. I purchased this DVD for my son as he loves Transformers. Received the DVD before the estimated date and before it was due to be released in Australia.We were only interested in the movie(extras etc not a big deal for my son) so it was a very good buy.Quality of movie was good too.
[EX A]:
Positive