{"database": "rubrics", "table": "rubric_calibration_events", "rows": [[42, "deepseek-v4-pro", 339, 338, "A", 1, 14864, "2026-05-26 02:38:25", null, null, "independence_level", "clearly", 1, "Response A demonstrates self-directed revision from a simple fact to a nuanced, arguable thesis, while Response B relies on external prompts and remains uncertain about how to improve further."]], "columns": ["id", "teacher_id", "gradation_id_a", "gradation_id_b", "teacher_choice", "correct", "response_time_ms", "created_at", "confidence", "perceived_difficulty", "influential_feature", "margin", "rubric_version", "reasoning"], "primary_keys": ["id"], "primary_key_values": ["42"], "units": {}, "query_ms": 0.847869087010622}