public virtual KeyPhraseSentimentResponse GetKeyPhrases(SentimentRequest request)
        {
            try
            {
                var result = Task.Run(async() => await SentimentRepository.GetKeyPhrasesAsync(request)).Result;

                return(result);
            }
            catch (Exception ex)
            {
                Logger.Error("SentimentService.GetKeyPhrasesAsync failed", this, ex);
            }

            return(null);
        }