I need to explore this dataset's analytical potential by understanding what dimensions and measures are actually available, then identify the most compelling questions they can answer. Let me start by examining the key fact tables to understand what analytical dimensions exist. {"action": "tool_call", "reasoning": "Need to understand what dimensions are available in the dominant beer_ratings table (14M rows, 85% of data) to see what analytical questions it can answer. The overview mentions it's isolated but I need to see what columns it actually has.", "tool": "inspect_columns", "args": {"table": "beer_ratings"}}