user: Question: Who was the winner when the finalist was FSV Frankfurt?
Columns: ['Year', 'Winner', 'Finalist', 'Result', 'Date', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1943.0, 'First Vienna FC', 'Luftwaffen-SV Hamburg', '3-2 aet', '31 October 1943', 'Stuttgart', 45000.0]
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Finalist" = 'FSV Frankfurt';