Top Words with LINQ

string text = "the cat and the hat and the bat the end";

var topWords = text
    .Split(new[] { ' ', '\n', '\t' }, StringSplitOptions.RemoveEmptyEntries)
    .GroupBy(word => word.ToLowerInvariant())
    .Select(g => new { Word = g.Key, Count = g.Count() })
    .OrderByDescending(x => x.Count)
    .ThenBy(x => x.Word)
    .Take(5);

foreach (var item in topWords)
{
    Console.WriteLine($"{item.Word}: {item.Count}");
}