user: Question: How long is the KO (punch) fight against Scott Smith?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Loss', '22-11', 'Matt Horwich', 'TKO (punches)', 'KSW XXI', 2.0, '4:08', 'Warsaw , Poland']
SQL:

assistant: SELECT "Time" FROM "Table" WHERE "Method" = 'KO (punch)' AND "Opponent" = 'Scott Smith';