static void Main()
{
Welcome();
Console.WriteLine("Please enter a word.");
string Word = Console.ReadLine();
Console.WriteLine("Please enter a sentence that uses that word at least once.");
string Sentence = Console.ReadLine();
RepeatCounter NeedsCount = new RepeatCounter(Word, Sentence);
NeedsCount.ValidInputCheck(Word);
NeedsCount.ValidInputCheck(Sentence);
Console.WriteLine("Your sentence contains the word " + Word + " " + NeedsCount.WordCount() + " time(s).");
}