user: Question: What is Date, when Margin Of Victory is 4 strokes?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['26 Aug 2001', 'Gleneagles Scottish PGA Championship', '−14 (69-69-67-69=274)', '1 stroke', 'Alex Čejka']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Margin of victory" = '4 strokes';