A system is designed to answer user questions by first finding relevant information from a database. Given the components below, which option correctly constructs the final, augmented input that will be sent to the language model?

• Original User Input (x): "What are the main benefits of solar power?"
• Retrieved Documents (c1, c2):
  • c1: "Solar energy is a renewable resource, meaning it won't run out."
  • c2: "Using solar panels can lead to significant reductions in electricity bills."
• Prompting Template (g): "Based on the following information, answer the user's question.\n\nInformation:\n[retrieved documents]\n\nQuestion:\n[original input]"

Troubleshooting a RAG System's Output

In a system that enhances a language model's responses by first retrieving relevant information, the final input to the model is constructed from several components. Match each component from the formal expression x' = g(c_1, ..., c_k, x) with its correct description.

Example of a RAG Prompting Template