```json {"action": "tool_call", "reasoning": "The main categorical column in the Iris dataset is 'Species'. The dataset card indicates a gold table 'Iris_by_Species' exists which contains the 'row_count' for each species. I will query this gold table to get the frequencies.", "tool": "query_sql", "args": {"sql": "SELECT Species, row_count FROM Iris_by_Species ORDER BY row_count DESC;", "purpose": "Get the frequency of each species", "source": "gold"}} ```