{
    "action": "tool_call",
    "reasoning": "I have already obtained frequency distributions for language, user_id, beer_id, and availability_id from the beer_ratings table. Now I need to identify other main categorical columns in the dataset and get their value distributions. From the inspect_columns result, I can see several categorical columns across different tables. Let me query the beers table to get distributions for key categorical fields like beer styles, and also check brewers and places tables for their main categorical dimensions.",
    "tool": "inspect_columns",
    "args": {
        "table": "beers"
    }
}