using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public class Resturant{

       public Guid ResturantId{get;set;}

       public string Name{get; set;}

       public MenuItem[] MenuItems {get;set;}

    }

​

    public class MenuItem 

    {

       public Guid MenuItemId {get;set;}

       public string Name {get;set;}

       public decimal Cost {get;set;}

    }

​

public class Table {

​

    public Resturant TableResturant {get;set;}

public Guid TableId {get;set;}

public TableSession Session {get;set;}

    public UserSession Host {get;set;}

}

    public class RequestItem {

public Guid RequestItemId {get;set;}

public MenuItem Item {get;set;}

public int Quantity{get;set;}

public Table ItemTable {get;set;}

public TableSession Session {get;set;}

    }

​

public class TableSession{

public DateTime StartTime {get;set;}

public RequestItem[] Items {get;set;} 

​

}

​

public class UserSession {

public TableSession TableSession{get;set;}

​

}

}