Single spaces, using new Regex(“( )”)

   
 

using System;
using System.Text.RegularExpressions;


public class MainClass {
    public static void Main() {
        string x = "Once Upon A Time In America";
        Regex m = new Regex("( )");
        foreach (string ss in m.Split(x)) {
            Console.WriteLine(ss);
        }
    }
}