{
    "action": "tool_call",
    "reasoning": "Compute pairwise Pearson correlations among the four measures in one query over raw.iris.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT 'sepal_length~sepal_width' AS pair, corr(sepal_length, sepal_width) AS r FROM raw.iris UNION ALL SELECT 'sepal_length~petal_length', corr(sepal_length, petal_length) FROM raw.iris UNION ALL SELECT 'sepal_length~petal_width', corr(sepal_length, petal_width) FROM raw.iris UNION ALL SELECT 'sepal_width~petal_length', corr(sepal_width, petal_length) FROM raw.iris UNION ALL SELECT 'sepal_width~petal_width', corr(sepal_width, petal_width) FROM raw.iris UNION ALL SELECT 'petal_length~petal_width', corr(petal_length, petal_width) FROM raw.iris ORDER BY r DESC",
        "purpose": "Pairwise Pearson correlations among the four numeric measures",
        "source": "raw"
    }
}