RAG is only as good as the text in the store it retrieves from, and what’s retrieved is only useful as context.
KEG (Knowledge-Engineered Generation), on the other hand, enforces a much higher quality of reference context, its concepts can be used for governance, and it allows for more “human in the loop”.
For chat (say) The simplest way is to introduce a browsing function into the chat UI. The user can then explore the concepts and then choose one to ask a question about.
You can try it out by clicking up the beth chat icon to the right and typing “knowledge graph”. Browse by entering a number.