user: Question: What was the winning score at Burdine's Invitational?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Jun 29, 1969', "U.S. Women's Open", '+2 (74-75-76-69=294)', '1 stroke', 'Peggy Wilson']
SQL:

assistant: SELECT "Winning score" FROM "Table" WHERE "Tournament" = 'Burdine''s Invitational';