static void Main()
{
Phone p = new Phone();
GPSDevice gps = new GPSDevice();
Camera cam = new Camera();
Traveller _trav = new Traveller();
Person _per = ne Person();
Photographer _photo = new Photographer();
_trav.Navigate(gps);
_per.Communicate(p);
_photo.CaptureRealObjects(cam);
SmartPhone _sm = new SmartPhone();
_trav.Navigate(sm);
_per.Communicate(sm);
_photo.CaptureRealObjects(sm);
}
