A retail company is building a customer support agent in Copilot Studio. The support team logs unstructured feedback in free-form text and wants the agent to reliably route requests into one of eight predefined support categories (billing, returns, shipping, etc.). The categories are stable and rarely change, and the business wants deterministic, trainable classification of short user utterances rather than open-ended generative interpretation. Which natural language capability should the architect select for this routing requirement?