#include #include // Implement the classes here void print_book(Book& book) { std::cout << book.description() << std::endl; } int main() { Book orwell { "1984", "George Orwell" }; Fantasy tolkien { "Lord of the Rings", "J.R.R. Tolkien" }; Non_Fiction primer { "C++ Primer", "Stanley Lippman", false }; Non_Fiction monkey { "Grumpy Monkey", "Suzanne Lang", true }; print_book(orwell); print_book(tolkien); print_book(primer); print_book(monkey); return 0; }