{
    "action": "tool_call",
    "reasoning": "The dataset has multiple geographic dimensions. I've already seen Host distribution in matches (step-3) and Venue distribution (step-5), plus association distribution in FIFA rankings (step-6). Now I need to check the geographic distribution in the remaining tables: schedule_2026 for future tournament locations, and examine the home_team/away_team distributions in matches_1930_2022 to see which countries have participated most frequently. Let me start by inspecting schedule_2026 columns to understand its geographic dimensions.",
    "tool": "inspect_columns",
    "args": {
        "table": "schedule_2026"
    }
}