I need to identify the main categorical columns in this dataset and find their most common values with frequencies. Let me start by examining the column metadata to identify categorical columns across the key tables. ```json { "action": "tool_call", "reasoning": "I need to identify categorical columns across the dataset. The inspect_columns tool will give me semantic roles and types to determine which columns are categorical. I'll start with the largest table (beer_ratings) and the core reference tables (beers, users).", "tool": "inspect_columns", "args": { "table": "beer_ratings" } } ```