using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace musicschoolapp
{
    public partial class Student
    {
        public override string ToString()
        {
            return LastName;
        }
    }
    public partial class Course
    {
        public override string ToString()
        {
            return Name;
        }
    }
    public partial class Instruments
    {
        public override string ToString()
        {
            return Name_instrument;
        }
    }
}