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

Example Input: I recall this recording on LP in the early fifties. It conveys the humour and genius of Mozart with great singers although other than Steber they were not previously identified with WM.
Example Output: Positive

Example Input: Worked like a charm all over England. I haven't tried the other adaptors, but I found my MacBook to work just like it does here in the US, and there was no difficulty plugging into the outlets.
Example Output: Positive

Example Input: This compilation befuddles me.The sound is a bit muffled on the tracks listed as 2000 remastered when compared with the John Denver's Greatest Hits.Not all tracks are 2000 remastered. Calypso and I'm Sorry are listed as 1975. They sound and look like the same files as Denvers's Greatest Hits when brought into audacity editing software.It also seems the 2000 remasters are not the original arrangements.I have both this "Best of Rocky Mountain" and Best of Volume 1 & 2.The Rocky Mountain version does dull or soften Denver's voice. Some may like that.But if dulls the instruments.I prefer the Best of Volumes. They are sharper with more detail to the instruments.
Example Output:
Negative