Home work - split

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

namespace Home_Work
{
    class Program
    {
        static void Main()
        {
            string userInput;
            string[] userInputWords;
            char[] separations = { ' ', '.', '!', '?', ','};
            int index = 1;

            Console.WriteLine("Введите любую строку: ");
            userInput = Console.ReadLine();

            userInputWords = userInput.Split(separations);

            Console.WriteLine("\nВаши слова:");

            foreach (string word in userInputWords)
            {
                if (word != "")
                {
                    Console.WriteLine(index + ". " + word);

                    index++;
                }
            }

            Console.ReadKey();
        }
    }
}