Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Monogamy is against human nature in BOTH sexes!

Woman enjoy sex with more than one partner just as much as men do. But whereas in males, society has always excused sex because "men, according to their nature, just need a change once in a while", women have always been denied the right to the same thing. If a woman did have an affair anyway, it was supposed that "there must have been something wrong in her marriage to make her do so." But Dalma Heyn shows, that most women just have affairs for no other reason but the joy of making love with more than only one partner. And, the number of women, who have a bad conscience while doing so is more and more diminishing. Another book to be recommended in this context is: "The ethical slut".