user: Question: what is the winning score when the tournament is Safeco Classic?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Feb 8, 1976', 'Sarah Coventry Naples Classic', '+2 (73-69-76=218)', '1 stroke', 'Sandra Haynie , Judy Meister']
SQL:

assistant: SELECT "Winning score" FROM "Table" WHERE "Tournament" = 'Safeco Classic';