public void removeFather()
{
this.father = null;
}
public Domain(string name)
{
this.name = name;
this.father = null;
}
public void addFather(string name)
{
this.father = new Domain(name);
}
public SName(string name, string domain = "")
{
this.name = name;
this.domain = new Domain(domain);
}
