Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Under the Moons of Mars

First, let's make this clear: I gave the book one star not for the content, which is actually good, but rather for the fact that it is actually not a stand-alone novel by Edgar Rice Burroughs. It is a compilation of The Princess of Mars, The God of Mars and Warlord of Mars. Unfortunately, to the untrained eye, this title may seem to be a novel on its own, so I bought it and found upon receiving it that I already owned these stories...Amazon has a return policy but since the official reason for this order is my mistake (there is no "duh one couldn't know just by the title that is was a duplicate in the scroll-down menu) I have to absorb the shipping fees, and since I live in Canada I have to ship it to the US which ends up costing me more than the refund I would get... Oh well...Long story short this book is a compilation so if you don't already own the first three short novels of John Carter of Mars go ahead and buy it but otherwise don't be fooled by the title!