{
    "action": "tool_call",
    "reasoning": "I found 3 impossible values in G4 (game 4 scores). I need to identify what makes them impossible — likely scores that violate table tennis rules (games go to 11, win by 2, so valid scores are 0-11 for the loser and 11+ for the winner, with the winner needing at least a 2-point margin). Let me find these specific rows to understand the issue.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Date, Time, Player1, Player2, P1_G4, P2_G4, Sets_P1, Sets_P2 FROM raw.table_tennis_sept2022 WHERE P1_G4 IS NOT NULL AND P2_G4 IS NOT NULL AND NOT ((P1_G4 >= 11 AND P2_G4 <= 9) OR (P2_G4 >= 11 AND P1_G4 <= 9) OR (P1_G4 >= 10 AND P2_G4 >= 10 AND ABS(P1_G4 - P2_G4) = 2))",
        "purpose": "Find the 3 impossible G4 scores to understand what rule they violate",
        "source": "raw"
    }
}