{
    "action": "final",
    "content": "The Iris dataset has **one main categorical column: Species**, which contains exactly three iris species with perfectly balanced frequencies:\n\n- **Iris-virginica**: 50 occurrences (33.3%)\n- **Iris-setosa**: 50 occurrences (33.3%)\n- **Iris-versicolor**: 50 occurrences (33.3%)\n\nThis is a classic balanced classification dataset where each of the three iris species is represented by exactly 50 samples out of the total 150 rows.\n\nThe other categorical columns in the dataset (_batch_id, _source_file, _source_system) are metadata fields from the ingestion process and each contains only a single distinct value across all rows, making them constants rather than meaningful categorical variables for analysis.",
    "charts": [
        {
            "kind": "pie",
            "series": [
                "row_count"
            ],
            "title": "Distribution of Iris Species"
        }
    ]
}