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

Q: I tried to read this book when it first came out. I couldn'tfinish it. There seem to be at least three themes or storylines in here struggling to get out. One seems to be a reasonably good alternative-history novel based on the idea that the pirate subculture of the 1700s might have formed a revolutionary constitutional regime. Unfortunately, this quickly becomes mixed up with maundering about certain ancient "cities of the red night" and a very great deal of homosexual imagery and fantasy. As the book goes on (as far as I read it, anyway) the main storyline becomes increasingly lost. I ultimately found it both distasteful and so muddled as to not be worth it.

A: Negative
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Q: I was very excited to buy this scanner and was pleased with its size and weight. However, if you have a Vista operating system, like I do, IT WILL NOT WORK! The company told me that they stopped selling this product over a year ago and there are no driver updates available for this product. If you have an older computer and an older operating system this product might work for you. But as for me it was a waste of money!

A: Negative
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Q: Plain old charger that comes with the sd870is that I forgot the charger for when I went home for Christmas. Works just fine.The only thing that I can complain about is Amazon's shipping; I ordered it with 2-day shipping and since I ordered it the tracking said that it would arrive Dec. 22nd. Well, the 22nd came and went, then when I checked the tracking it said that it was on time and would arrive the 23rd. Wait, if it was on time then it would have arrived the 22nd...? OK... Thanks Amazon, so much for 2-day shipping...

A:
Positive
****