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

This is nothing new from Gail Howard, or at all. These wheeling systems can be worked out mathematically, without paying for this book. There are also lots of websites that offer number generators and wheeling system explanations for free. If you want it all spelled out for you then buy this book, but if you are willing to do a little mathematical work check out lottery information website like [...].
Negative

Over the winter, i seem to gain alot of weight. As a high school quarterback, that is not acceptable. Last summer, i think i went from 160 to 150. That's my gross weight loss. I'm not even talking about how much fat i lost. I gained a good amount of muscle over the summer, so i probably lost over 15 lbs of fat. I got my six pack back, and life was great. After the season, i just quit, and now my six pack is back in the fridge. I'll probably order some up next week and start again. These are great, and the results are amazing.
Positive

This was the first Xanth novel I ever read, but it was easy enough to get into. I wasn't too confused by reference to other Xanth novels as they were minimal and were not much focused on. Some of the jokes were rather funny, and the plot had enough humorous twists in it (and a couple of cool surprises!) to keep me well-entertained. It was a rather enjoyable book, though I definitely like Incarnations of Immortality better. overall 3.5/5 stars.
Positive