class A
{
	B Child { get; set; }
 	int Age { get; set; }
	string Foo { get; set; }

	A(B child, int age, string foo)
	{
		Child = child;
		Age = age;
		Foo = foo;
	}

  	Clone()
	{
		return new A(Child, Age, Foo);
	}
}