{
    "action": "tool_call",
    "reasoning": "I have extensive evidence on severity, seriousness, outcomes, and death/hospitalization flags. The most striking pattern I see is that 43 events are marked SEVERE but AESER='N' (not serious), which seems counterintuitive — severe events should typically be serious. However, I need to verify whether there's a clinical or regulatory logic that explains this, or if it's truly anomalous. Let me also check if there are other unexpected patterns, such as fatal events that aren't marked serious, or recovered events with death flags. I'll query the fatal events more closely and also look at the SEVERE+non-serious breakdown by outcome to see if there's a pattern that makes sense.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT AESEV, AESER, AEOUT, AESDTH, AESLIFE, AESHOSP, COUNT(*) as event_count FROM raw.ae WHERE AESEV = 'SEVERE' AND AESER = 'N' GROUP BY AESEV, AESER, AEOUT, AESDTH, AESLIFE, AESHOSP ORDER BY event_count DESC",
        "purpose": "Examine the 41 SEVERE but non-serious events to see if there's a pattern in outcomes or seriousness criteria that explains why they weren't flagged as serious",
        "source": "raw"
    }
}