{
    "items": [
        {
            "item": "grain_matches_the_claim",
            "verdict": "pass",
            "line": "The SELECT clause aggregates distinct counts across the requested categorical columns."
        },
        {
            "item": "filters_match_the_question",
            "verdict": "not_applicable",
            "line": "There are no filters requested in the question."
        },
        {
            "item": "joins_on_declared_relationships",
            "verdict": "not_applicable",
            "line": "The query operates on a single table and does not require joins."
        },
        {
            "item": "null_and_zero_handling",
            "verdict": "pass",
            "line": "The COUNT(DISTINCT) function correctly ignores NULL values in the categorical columns."
        },
        {
            "item": "time_window_against_the_single_temporal_authority",
            "verdict": "not_applicable",
            "line": "There is no temporal authority or time window requirement for this question."
        },
        {
            "item": "units",
            "verdict": "not_applicable",
            "line": "The question asks for counts of distinct values, which are dimensionless integers."
        }
    ]
}