{
    "action": "tool_call",
    "reasoning": "The dataset has multiple geographic dimensions. From the evidence, I can see: (1) matches_1930_2022 has Host and Venue columns for match locations, plus home_team/away_team which represent countries; (2) fifa_ranking tables have team (country names), team_code, and association (continental confederation). I need to understand the distribution across these geographic axes. Let me start by querying the distribution of matches by host country, which shows where World Cups have been held historically.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Host, COUNT(*) as match_count, MIN(Year) as first_year, MAX(Year) as last_year FROM raw.matches_1930_2022 GROUP BY Host ORDER BY match_count DESC",
        "purpose": "Distribution of World Cup matches by host country to show geographic concentration of tournament hosting",
        "source": "raw"
    }
}