calculate_custom_score
                        Calculate the score of sentences
calculate_custom_sentiment
                        Predicts the sentiment of sentences
calculate_custom_total_presence_sentiment
                        Calculate the number of sentences in each
                        category of sentiment.
calculate_score         Calculate the score of sentences
calculate_sentiment     Predicts the sentiment of sentences
calculate_total_presence_sentiment
                        Calculate the number of sentences in each
                        category of sentiment.
