user: Question: Which player made 4 touchdowns while playing Left halfback?
Columns: ['Player', 'Position', 'Starter', 'Touchdowns', 'Extra points', 'Field goals', 'Points']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Herrnstein', 'Right end', 'Yes', 5.0, 0.0, 0.0, 25.0]
SQL:

assistant: SELECT "Player" FROM "Table" WHERE "Touchdowns" = 4.0 AND "Position" = 'Left halfback';