user: Question: What is the Margin of victory on Aug 11, 2002?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Jul 30, 1995', 'Ameritech Senior Open', '–22 (66-63-66=195)', '8 strokes', 'Kermit Zarley']
SQL:

assistant: SELECT "Margin of victory" FROM "Table" WHERE "Date" = 'Aug 11, 2002';