user: Question: What years did Tom Lehman win?
Columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Seve Ballesteros', 'Spain', '1979 , 1984 , 1988', 148.0, 8.0]
SQL:

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