{
    "action": "tool_call",
    "reasoning": "The question asks for natural segmentation/grouping of records. I've seen basic win/loss stats, but need to explore other dimensions. The dataset has multiple boxer-related tables and many categorical columns (stance, ranking, fight outcome types). Let me check what gold tables exist first, as they may reveal pre-computed groupings that indicate natural segments.",
    "tool": "get_gold_tables",
    "args": {}
}