https://stackoverflow.com/a/4286571

        static string UppercaseFirst(string s)
        {
            if (string.IsNullOrEmpty(s))
                return string.Empty;
            return char.ToUpper(s[0]) + s.Substring(1);
        }

        static string LoremIpsum(int minWords, int maxWords, int minSentences, int maxSentences, int numParagraphs)
        {
            var words = new[] {"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer",
                "adipiscing", "elit", "sed", "diam", "nonummy", "nibh", "euismod",
                "tincidunt", "ut", "laoreet", "dolore", "magna", "aliquam", "erat"};
            var rand = new Random();
            int numSentences = rand.Next(maxSentences - minSentences) + minSentences + 1;
            int numWords = rand.Next(maxWords - minWords) + minWords + 1;
            var result = new StringBuilder();
            for (int p = 0; p < numParagraphs; p++)
            {
                for (int s = 0; s < numSentences; s++)
                {
                    for (int w = 0; w < numWords; w++)
                    {
                        if (w > 0) { result.Append(" "); }
                        var word = words[rand.Next(words.Length)];
                        if (w == 0) { word = UppercaseFirst(word); }
                        result.Append(word);
                    }
                    result.Append(". ");
                }
                result.Append("\n\n");
            }
            return result.ToString();
        }