private static string GetSentenceInput()
{
RepeatCounter tester = new RepeatCounter();
Console.WriteLine("Enter a sentence to search for matches.");
string sentenceInput = Console.ReadLine();
if (tester.CheckIfEmpty(sentenceInput))
{
Console.WriteLine("Empty sentence to search not valid. Please try again.");
Console.WriteLine("-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-=x=-");
sentenceInput = GetSentenceInput();
}
return(sentenceInput);
}