user: Question: What winning score has Kraft Nabisco Championship as the tournament?
Columns: ['Date', 'Tournament', 'Winning score', 'To par', 'Margin of victory', 'Runner(s)-up', "Winner's share ( $ )"]
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['29 Jun 2008', "U.S. Women's Open", '72-69-71-71=283', '–9', '4 strokes', 'Helen Alfredsson', 560000.0]
SQL:

assistant: SELECT "Winning score" FROM "Table" WHERE "Tournament" = 'Kraft Nabisco Championship';