{
    "action": "tool_call",
    "reasoning": "The gold tables listed in the card don't actually exist in the database. I need to work with the raw tables. From the overview, this is a clinical trial dataset where the most important metric is adverse event count (safety signal) and the most important category is treatment arm (comparing safety across treatment groups). I'll query the raw tables to show adverse event counts by treatment arm. First, I need to understand the structure - ae table has adverse events, adsl has subject demographics including treatment arm. I'll need to join them on USUBJID to count adverse events by treatment arm.",
    "tool": "inspect_columns",
    "args": {
        "table": "ae"
    }
}