{
    "classifications": [
        {
            "column": "name",
            "role": "attribute",
            "confidence": 0.6,
            "reason": "Player name, descriptive text with 462 distinct values; displayed rather than aggregated (could also be used as an identifier or grouping label)."
        },
        {
            "column": "year",
            "role": "dimension",
            "confidence": 0.97,
            "reason": "Year is a time axis used for grouping and filtering."
        },
        {
            "column": "tournament",
            "role": "dimension",
            "confidence": 0.9,
            "reason": "Tournament name is a categorical label with 370 distinct values, used to group and slice."
        },
        {
            "column": "rounds",
            "role": "dimension",
            "confidence": 0.6,
            "reason": "Categorical list of rounds reached, with 159 distinct combinations; used for filtering or grouping and not numeric."
        }
    ]
}