user: ### NOW ANSWER:
Question: What happened on 2009-09-05?
Columns: ['Date', 'Location', 'Nature of incident', 'Circumstances', 'Casualties']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2009-02-11', 'Mazar-i-Sharif', 'unknown', 'unknown', '1 killed']
SQL:

assistant: SELECT "Circumstances" FROM "Table" WHERE "Date" = '2009-09-05';