{
    "action": "tool_call",
    "reasoning": "I've found several interesting patterns, but I need to explore one more angle that could be truly counterintuitive: comparing the era of early boxing (pre-1950s) versus modern boxing (post-2000) in terms of reign stability. The data shows Joe Louis held a title for 4,270 days (11.7 years) and early champions had multi-year reigns, while I see some modern champions with reigns under 100 days. Let me quantify the contrast between eras to see if there's a dramatic shift in championship stability.",
    "tool": "query_sql",
    "args": {
        "sql": "WITH era_stats AS (SELECT CASE WHEN Recognition < '1950-01-01' THEN 'Pre-1950 (Early Boxing)' WHEN Recognition >= '2000-01-01' THEN 'Post-2000 (Modern Era)' ELSE '1950-1999 (Middle Era)' END as era, No as champion_name, Recognition as begin_date, End_reign as days_text FROM raw.championsdataset WHERE End_reign NOT IN ('def.', '–', ' ', 'draw vs.', '−') AND End_reign NOT LIKE '%def.%' AND LENGTH(REPLACE(End_reign, ',', '')) <= 6) SELECT era, COUNT(*) as num_reigns, ROUND(AVG(CAST(REPLACE(End_reign, ',', '') AS INTEGER)), 1) as avg_days, MIN(CAST(REPLACE(End_reign, ',', '') AS INTEGER)) as min_days, MAX(CAST(REPLACE(End_reign, ',', '') AS INTEGER)) as max_days, ROUND(MEDIAN(CAST(REPLACE(End_reign, ',', '') AS INTEGER)), 1) as median_days FROM era_stats GROUP BY era ORDER BY era",
        "purpose": "Compare championship reign durations across three eras to identify if there's a dramatic shift in title stability",
        "source": "raw"
    }
}