{
    "action": "tool_call",
    "reasoning": "I've reviewed the evidence showing species-level statistics, correlations, and variability patterns. The most counterintuitive finding appears to be the sepal width behavior across species. Looking at step-1 results, Iris-setosa has the HIGHEST average sepal width (3.418 cm) despite being the smallest species overall (avg_total_size = 10.13 in step-2), while Iris-virginica (the largest species with avg_total_size = 17.14) has a LOWER sepal width (2.974 cm). This contradicts the intuitive expectation that larger flowers would be proportionally larger in all dimensions. To confirm this is genuinely surprising and not just a measurement artifact, I need to verify the actual distribution of sepal widths to ensure this isn't driven by outliers.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Species, MIN(SepalWidthCm) as min_width, PERCENTILE_CONT(0.25) WITHIN GROUP (ORDER BY SepalWidthCm) as q1, MEDIAN(SepalWidthCm) as median_width, PERCENTILE_CONT(0.75) WITHIN GROUP (ORDER BY SepalWidthCm) as q3, MAX(SepalWidthCm) as max_width, COUNT(*) as n FROM raw.Iris GROUP BY Species ORDER BY median_width DESC",
        "purpose": "Verify the sepal width distribution across species to confirm that setosa consistently has wider sepals than the larger species, ruling out outlier effects",
        "source": "raw"
    }
}