```json { "scores": [ { "id": "cnv_b9e6490afc4b4af8", "score": 35, "tier": "not_useful", "rationale": "Malformed response; no actual column listing or data types provided. Vague bullet points only." }, { "id": "cnv_a9d6b51b03b84c0b", "score": 82, "tier": "great", "rationale": "Concrete table sizes, row/column counts, time span (2013–2024). Specific evidence. Essential orientation." }, { "id": "cnv_00aea70debd547be", "score": 78, "tier": "great", "rationale": "Clear domain context (men's tennis), row definition (player-match), table structure. No evidence queries but substantive." }, { "id": "cnv_779bf56ac92c4781", "score": 52, "tier": "regular", "rationale": "Partial classification; incomplete column coverage. Useful structure but admits gaps and cutoffs." }, { "id": "cnv_c55893c8b5f34fa3", "score": 75, "tier": "great", "rationale": "Concrete row examples with named players, dates, columns. High confidence. Shows data shape clearly." }, { "id": "cnv_5a493208ea6947e9", "score": 88, "tier": "great", "rationale": "Precise null percentages (36.59%, 4.38%, 1.85%). Identifies 7 columns missing together. High confidence, actionable." }, { "id": "cnv_12bb4f94d5f64168", "score": 72, "tier": "regular", "rationale": "Exact duplicate counts (2 per table, ~0.001%). Near-duplicate keys identified. Useful but low-impact finding." }, { "id": "cnv_1e6233ec503d4b30", "score": 45, "tier": "not_useful", "rationale": "Placeholder answer. No actual distinct-value counts provided despite high confidence claim." }, { "id": "cnv_a476d8f834ba4901", "score": 65, "tier": "regular", "rationale": "Min/max/mean for numeric columns (rank 1–2225, year 2002–2024). Partial; admits missing median/spread." }, { "id": "cnv_08045317639c4528", "score": 58, "tier": "regular", "rationale": "Identifies date format inconsistency (Unicode hyphen). Supported by evidence but incomplete; no row-level validation." }, { "id": "cnv_b736a7c3031044ff", "score": 80, "tier": "great", "rationale": "Top players named with exact frequencies (Djokovic 0.61%, Nadal 0.60%). Surface distribution clear. High confidence." }, { "id": "cnv_31daec3def3f4336", "score": 48, "tier": "not_useful", "rationale": "Admits no correlation computed. Infers relationships from null patterns only. Incomplete answer to the question." }, { "id": "cnv_a55dbde8c0b34a18", "score": 42, "tier": "not_useful", "rationale": "Admits failure to answer (no row-level queries). Lists min/max but no named records. Incomplete." }, { "id": "cnv_4c9e2e122c5942e6", "score": 40, "tier": "not_useful", "rationale": "Placeholder answer. No time-series analysis or spikes/dips identified despite high confidence." }, { "id": "cnv_637e1ae0cf17476c", "score": 40, "tier": "not_useful", "rationale": "Placeholder answer. No metric-by-category breakdown shown despite high confidence claim." }, { "id": "cnv_f5687381a52e4bfb", "score": 85, "tier": "great", "rationale": "Surface segmentation with concrete counts (Hard 117k, Clay 107k, Grass 9k) and aces by surface (3.38–7.94). Actionable." }, { "id": "cnv_b27dbe7125cf469f", "score": 70, "tier": "regular", "rationale": "Clay aces ~50% of Hard/Grass. Specific numbers in table. Counterintuitive but admits incomplete investigation." } ] } ```