Create Privacy-Preserving RAG Evaluation Scenario

Construct a scenario where the R&D assistant needs to retrieve information from a 'sensitive' internal document that contains PII or proprietary secrets. Design a RAG retrieval and generation process that utilizes privacy-preserving techniques (e.g., anonymization by the RAG system before LLM consumption, or strict query filtering) to prevent the LLM from accessing or revealing this sensitive information, even if it's present in the underlying vector database.