This article discusses how to use IBM Watson's Natural Language Understanding (NLU) and Twilio Functions with Node.js to analyze texts. The author, Lizzie Siegle, guides readers through creating a free Watson NLU service and integrating it with Twilio Functions to extract relevant information from text messages, including sentiment, categories, concepts, entities, and keywords. With this setup, users can send an SMS message to a Twilio phone number, which is then analyzed by IBM Watson, providing insights into the content of the message. The article provides step-by-step instructions and code examples for creating a functional Twilio Function that leverages Watson NLU to analyze texts.