```json { "action": "tool_call", "reasoning": "The question asks for all columns, their data types, and meanings. The dataset card shows raw.table_tennis_sept2022 has 22 columns with types listed, but no descriptions. I'll use inspect_columns to get detailed metadata including semantic roles and meanings for all columns.", "tool": "inspect_columns", "args": { "table": "table_tennis_sept2022" } } ```