user: Question: What was the lowest placement with a final of 23.92?
Columns: ['Placement', 'Name', 'Event', 'Final', 'Year']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Naomi Bourgeois', "E Girls' 400 m Hurdles (17–18 yrs)", '77.73', 2010.0]
SQL:

assistant: SELECT MIN("Placement") FROM "Table" WHERE "Final" = '23.92';