user: Question: What was the notes of the 400 m event before 2004 with a position of 12th (h)?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Event', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1999.0, 'African Junior Championships', 'Tunis, Tunisia', '9th (h)', '100 m', '12.60']
SQL:

assistant: SELECT "Notes" FROM "Table" WHERE "Event" = '400 m' AND "Year" < 2004.0 AND "Position" = '12th (h)';