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

[EX Q]: This CD is great for some people, but I think a lot of other people are buying it who maybe shouldn't.For the Nirvana fanatic with money, get the full boxed set, you will probably find the DVD and the book to be worth the extra money, even if you don't listen to the added tracks.If you aren't a fanatic, stick with the albums. You will not like the low sound quality of the recordings.Now, for the Nirvana fanatic who's a bit short on cash, but absolutely has to have "Do Re Mi" as part of his collection, that's who this is for. "Do Re Mi" is an excellent track, one of Nirvana's best...so if you are a serious Nirvana fan, you DO need to have that one.
[EX A]: Positive

[EX Q]: As a musician and musicology student, I am very familar with both the "classical" world of music, and the popular world of music, and I have to say that perhaps string quartet versions of R.E.M. might be interesting, but you need a creative and enterprising quartet (such as Kronos Quartet, etc.) to do this. This CD is greatly disappointing because the transcriptions are simplistic and lacking imagination. String quartet recordings can be very exciting, but not here!
[EX A]: Negative

[EX Q]: This was a gigando rip-off! It does not even contain the "The Owl and the Pussycat," which from the ad I expected to be included. The table of contents is a joke - listing the page numbers of each of the numbered limericks, which could have been written by almost any college freshman after 3 beers at the local bar. There was no attempt at editing, and often a limeick with one line at the bottom of one page would be continued at the top of the next.This is a book which Amazon should be ashamed to list and should be obliged to refund all of the money paid by each person taken in by the listing.
[EX A]:
Negative