static void Main(string[] args)
{
Disciplines Biology = new Disciplines("Биология", 1, 5);
Disciplines Chemistry = new Disciplines("Химия", 1, 5);
Disciplines Physics = new Disciplines("Физика", 1, 5);
Teacher Jorge = new Teacher("Георги Петров").AddDiscipline(Biology,Chemistry,Physics);
Student Pesho = new Student(1,"Пешо Вървев");
Student Jon = new Student(2, "Джон Ленън");
Grade A10 = new Grade("Klas 10a").AddStudent(Pesho).AddTeacher(Jorge);
}
public Grade RemoveTeacher(Teacher teacher)
{
this.teachers.Remove(teacher);
return this;
}