{
    "action": "tool_call",
    "reasoning": "I need to first understand the actual data format and structure. My previous attempts failed due to incorrect column names and data format assumptions. Let me inspect the columns to see their exact names and types, then look at sample data to understand how Amount and Valuation are formatted.",
    "tool": "inspect_columns",
    "args": {
        "table": "raw.Largest US Venture Funding Deals Of 2023"
    }
}