user: Question: Who won in 1991?
Columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par', 'Finish']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Payne Stewart', 'United States', '1991', 274.0, '–6', '2']
SQL:

assistant: SELECT "Player" FROM "Table" WHERE "Year(s) won" = '1991';