public IDictionary<string, Index> CountWords(FullText fullText)
        {
            var wordCount = new Dictionary<string, Index>();

            foreach (Sentence sentence in fullText.text)
            {
                foreach (Word word in sentence.Words)
                {
            if(wordcount.ContainsKey(word.Value)) {
                wordcount[word.Value].WordCount++;
            wordcount[word.Value].NumbersOfSentence++;
            } else {
            wordcount[word.Value] = new Index {
                WordCout = 1,
                NumbersOfSentence = 1,
                firstLetterOfWord = word.Value[0]
            }
            }
                                    }
            }

            return wordCount;
        }

 public class Index
    {
        public int WordCount { get; set; }
        public int [] NumbersOfSentence { get; set; }
        public char firstLetterOfWord { get; set; }
    }