user: Question: What year did Barry Sheene win the 125 cc?
Columns: ['Year', 'Track', '125 cc', '250 cc', 'Report']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1990', 'Anderstorp', 'Hans Spaan', 'Carlos Cardús', 'Report']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "125 cc" = 'Barry Sheene';