Context Relevance Score [RAGAS]

[RAGAS framework] RAGAS measures what fraction of retrieved chunks are relevant. You retrieve 5 chunks, 2 are relevant. Note: RAGAS is one popular eval framework; others (TruLens, DeepEval) define similar metrics with different implementations. Compute the score. Flag format: CONGRESS{relevant_chunks:[n],total_chunks:[n],score:[n]} Example: CONGRESS{relevant_chunks:3,total_chunks:10,score:0.3}