List<string[]> threeGrams = new List<string[]>();
                int wordCount = nonEmptyWords.Count;
                for (int i = 0; i < wordCount - 2; i++)
                {
                    string[] threeGram = new string[3];
                    for (int j = 0; j < 3; j++)
                    {
                        threeGram[j] = nonEmptyWords[i + j];
                    }

                    threeGrams.Add(threeGram);
                }

                foreach (string[] threeGram in threeGrams)
                {
                    output.Set("MeetingId", meetingId);
                    output.Set("ThreeGramWord1", threeGram[0]);
                    output.Set("ThreeGramWord2", threeGram[1]);
                    output.Set("ThreeGramWord3", threeGram[2]);

                    yield return output.AsReadOnly();
                }