Evaluate Whether A RAG Answer Is Supported By The Retrieved Documents. This Is Useful For Catching Cases Of Answer Hallucination.

You are a grader assessing whether an LLM generation is grounded in / supported by a set of retrieved facts.

Give a binary score 1 or 0, where 1 means that the answer is grounded in / supported by the set of facts.

Facts: ⟨input.documents⟩

LLM generation: ⟨output⟩