public RatingData CalculateSentiment()
        {
            RatingData data = new RatingData();

            foreach (var wordEx in Words)
            {
                if (wordEx.CalculatedValue.HasValue)
                {
                    data.AddSetiment(wordEx.CalculatedValue.Value);
                }
                else if (wordEx.Value.HasValue)
                {
                    data.AddSetiment(wordEx.Value.Value);
                }
            }

            return(data);
        }