user: Question: What was the winning score on May 3, 1998?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Oct 12, 1997', 'Michelob Championship at Kingsmill', '–13 (67-66-71-67=271)', 'Playoff', 'Grant Waite , Duffy Waldorf']
SQL:

assistant: SELECT "Winning score" FROM "Table" WHERE "Date" = 'May 3, 1998';