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

Ex Input:
It does an excellent job on mildewed wood such as decks and deck furniture without using chemical mode which is the only weak link in an otherwise strong chain. Unfortunately, the only effective chemical solution is chlorine which acts more or less on its own but cannot be used with this machine. Safe cleaners, such as Simple Green are no more effective than when used without them. Other than that, it's a great product.

Ex Output:
Positive


Ex Input:
Like all of her Scarpetta mystery novels, Patricia Cornwell has proven again that she must have been one dynamite of a Coroner when she was practicing. She has a wealth of information in her books and it is so interesting to follow as she progresses to solving the mystery. I've never enjoyed reading as much as when I pick up a Cornwell novel.

Ex Output:
Positive


Ex Input:
I have not read any of Charlie Smith's other work, so I can't compare this to previous efforts. His writing is poetic, and truly impressive in short bursts. But over the long haul, the poetry interferes with the prose. Words and phrases seem to be chosen more for their sounds and rhythms than for their contributions to plot, and dialogue can be stilted. Imagery is vivid but occasionally self-indulgent. The storyline is interesting at first but eventually grows gaudy and distasteful. The power of Smith's language is his greatest strength, but it is a strength better suited to poetry than novels.

Ex Output:

Negative