public void Execute()
{
ITea tea = new Tea();
// Make a simple tea
Console.WriteLine(Environment.NewLine);
Console.WriteLine(tea.GetDescription() + " is " + tea.GetCost());
// Decorate the tea with extra milk
tea = new WithExtraMilk(tea);
Console.WriteLine(tea.GetDescription() + " is " + tea.GetCost());
tea = new WithExtraSugar(tea);
Console.WriteLine(tea.GetDescription() + " is " + tea.GetCost());
}