static void Main(string[] args)
{
ElderSon Eson = new ElderSon();
Dad dad = new Dad(Eson);
Console.WriteLine(dad.NotifySon("Get me the knife"));
YoungerSon Yson = new YoungerSon();
Dad dad2 = new Dad(Yson);
Console.WriteLine(dad2.NotifySon("Get me the fork").ToString());
Mom mom = new Mom();
Console.WriteLine(mom.NotifySon(Yson, "Help Me"));
Console.WriteLine(mom.NotifySon(Eson, "Help Me"));
StepFather StFather = new StepFather();
StFather.FirstSon = Yson;
StFather.SecondSon = Eson;
Console.WriteLine(StFather.NotifySon("Get the hell out of the house"));
StepMother StMother = new StepMother();
StMother.FirstSon = Yson;
Console.WriteLine(StMother.NotifySon("First son get out, second son may stay"));
Console.ReadKey();
}
