{
    "action": "tool_call",
    "reasoning": "Amount is VARCHAR in all five tables; check its formats before casting.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Amount, COUNT(*) AS n FROM (SELECT Amount FROM raw.\"Indian Startups _ Funding  Investors Data January 2022\" UNION ALL SELECT Amount FROM raw.\"Indian Startups _ Funding  Investors Data February 2022\" UNION ALL SELECT Amount FROM raw.\"Indian Startups _ Funding  Investors Data March 2022\" UNION ALL SELECT Amount FROM raw.\"Indian Startups _ Funding  Investors Data April 2022\" UNION ALL SELECT Amount FROM raw.\"Indian Startups _ Funding  Investors Data May 2022\") GROUP BY Amount ORDER BY n DESC LIMIT 50",
        "purpose": "See Amount value formats",
        "source": "raw"
    }
}