Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Mediocre

Precisely what we do not have is a real understanding of Sudan. We get a brief history; we get a sense that Petterson's diplomatic endeavours were futile; and we get information about the civil war which is available elsewhere. The fact is, Petterson did not have enough to write a book and should have spared us. If all the good elements were compressed, they would make a chapter in a real book. And the information on terrorism does not add anything new, if you are familiar with al-Qaeda. That was a ploy to encourage people post 11/September to buy it. I read it through, and was not rewarded by understanding Sudan. I will search elsewhere.