static void Main(string[] args)
{
var factory = new BuilderFactory();
dynamic helloWorldBuilder = factory.ABuilderFor<HelloWorld>();
HelloWorld helloWorld1 = helloWorldBuilder.WithMessage("Today is {0}")
.WithDate(DateTime.Today)
.Value;
HelloWorld helloWorld2 = helloWorldBuilder.WithMessage("Yesterday was {0}")
.WithDate(DateTime.Today.AddDays(-1))
.Value;
Console.WriteLine(helloWorld1);
Console.WriteLine(helloWorld2);
Console.ReadKey();
}