private string RunDemo()
        {
            MultiLanguageBatchInput batchInputs = new MultiLanguageBatchInput()
            {
                Documents = FetchCommentsFromDB(connectionString)
            };
            var    sentimentPrediction = _client.SentimentBatch(batchInputs);
            string analysis            = JsonConvert.SerializeObject(sentimentPrediction);

            return(analysis);
        }