{
    "action": "tool_call",
    "reasoning": "I've found that Chinese players held the #1 rank for 205 out of 219 weeks (93.6%), with only 3 non-Chinese players ever reaching #1 (Boll, Ovtcharov, Schlager for just 14 weeks total). This is striking dominance. Now I need to check if the women's division shows the same pattern or if there's a surprising contrast.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Name, Assoc, COUNT(*) as weeks_at_rank1, MIN(YearNum) as first_year, MAX(YearNum) as last_year FROM raw.ittf_rankings_women WHERE Rank = 1 GROUP BY Name, Assoc ORDER BY weeks_at_rank1 DESC",
        "purpose": "Identify which women players held #1 rank and for how long, to compare geographic concentration with men's division",
        "source": "raw"
    }
}